Clean the filter if it is not clear already. You must log in or register to reply here. David is a man who loves doing research and finding out the best solution to any type of heating appliance issues like heaters and fireplaces. Thanks! https://w. It may not display this or other websites correctly. . There are a few of these problems that you might face. Youll need to complete the following: At this time, the problem with your Pentair service heater light on should be resolved. With over 300,000 members, TFP is the largest and most influential pool & spa website on the Internet. You can contact Pentair to get you a new control board. The most common problems are listed down below: The worst-case scenario for a water heater is corrosion of the heat exchanger. Although R14 isnt an error code, it is easy to mistake it as one because during this revision process the heater may diagnose an issue and enter lockout. If your heaters bypass valve is stuck open, this will also lead to corrosion. . The location of your Pentair MasterTemp 400 temperature sensor is close to the high-limit switch. I have not had any ignition problems or error codes since. Your Pentair service heater light should be turned off after following these procedures. This will cause corrosion as airflow and water will turn into rust. Why does my Pentair pool heater keep shutting off? The underneath circuit card "HLS" red LED is illuminated as well. Learn who to hire, what itll cost and how long it will take. All you have to do is prevent the issues mentioned above. What does R13 mean on a Pentair pool heater? The spa will restart and turn off again. The wiring in your heater should be examined. The Pentair Mastertemp 400 is a heater that is used to warm water in swimming pools, as well as in spas. Heaterfixlab.com is a participant in Google Adsense and Ezoic Ad Network. Solution: To solve this issue, all you can do is replace the defective keypad membrane with a new one. You need to inspect that the water flow isnt blocked. Yes, there are some Pentair Mastertemp 400 common problems but it's still a good one and highly recommended. If its on, the high limit switch may need to be replaced. Why does my Pentair pool heater keep shutting off? You will need to solve the issue. . CHECK FOR CORRODED CONNECTORS, BROKEN WIRES TO THE STACK FLUE SENSOR OR REPLACE THE STACK FLUE SENSOR COMPLETELY IF YOU GET E05 ON YOUR DISPLAY) If there is a low supply of voltage to the control board, it is 00due to the fact that your water heater's transformer has been damaged somehow. RV Water Heater Igniter Not Clicking [7 Easy Fixes], How To Fix Pentair Pool Heater Error Codes E01 [Solved], State Select Water Heater Thermocouple Replacement [Solved], State Select Water Heater Pilot Light Issues [7 Easy Fixes], Richmond Tankless Water Heater Code 29 [Reasons + Solutions], Richmond Tankless Water Heater Code 13 [Reasons + Solutions], Richmond Tankless Water Heater Code 11 [Why+ How To Fix]. Thanks. I just saw the EZ Touch. You do not want that. For MV heaters, if the pilot won't stay lit, check the output on the thermocouple. If the thermal governor of your heater is stuck closed, this will eventually cause your heat exchanger to develop corrosion. For the alkalinity and pH level issues, you must regularly check your Pentair Mastertemp 400 heater and make sure that the heater is always updated. The consent submitted will only be used for data processing originating from this website. When your heater is starting up and this error occurs, you may have R13 displayed on your screen while the heater service light is on. Ensure that the water going through the heat exchanger has a temperature of at least 57C. The Pentair Mastertemp 400 common problems are easy to solve, and they get easier to solve with the help of this article. are some possibilities. I solved my various ignition problems on my Minimax 400. Ask the Pool Guy All rights reserved. is changing that. Yellow dot indicates that switch opens at 140 F Automatic Gas Shutoff (AGS) Switch 2655 1096 PRESS TAB VENT PILOT OFF ON Location The Automatic Gas Shutoff (AGS ) Switch is located in the The error code R14 occurs when your heating system cycles through all of its settings. When the temperature of the stack flue rises above a certain degree, this error message will show up on your heater. A damaged capacitor or a snagged cable could also be the source of the error. The Pentair heater error code AFS may follow the R14 code on your heater display. Any new postings here are unlikely to be seen or responded to by other members. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. Any idea what r=8 error message is telling me? It is the code that pops up on your heater when it gets into revision mode. JavaScript is disabled. How To Deal With Pentair Heater Error Code R14 [Solved], Pentair Heater Error Codes [Full List + Causes + Solutions], State Select Water Heater Thermostat Replacement [All Types], State Select Gas Water Heater Troubleshooting [Reasons + Solutions], State Select Water Heater Thermocouple Replacement [Solved], State Select Water Heater Pilot Light Issues [7 Easy Fixes], Richmond Tankless Water Heater Code 29 [Reasons + Solutions]. It works similar to a thermostat on a car engine. You also need to clean up the heat exchanger and ensure that the heater is getting accurate gas pressure. The radiator will not be as effective as usual because of the imbalance levels of scaling. What does E05 mean on a Pentair pool heater? How old is your system? Fixed Pentair pool heater showing E01 error Verified Purchase I have a Pentair pool heater that stopped heating, showed scrolling temperatures on the control board and then displayed error code E01. Pentair error code R14 isnt actually an error code. All Right Reserved by HeaterFixLab. Recalled Pool Heater Model Numbers Make sure the water isnt over 60 degrees Celsius. There are a few options for dealing with the Pentair heater AGS problem. It should read 10,000 ohms at 77 degrees Fahrenheit (25 degrees Celsius). 2,195. During that time it will run for ~30 seconds seemingly normal. What does R14 mean on a Pentair pool heater? The most typical reasons for this issue are a faulty thermal regulator or an insufficient fuel supply. Your safety circuit components, membrane pad, or control board may be damaged if this is happening. Plenty of water running through If the voltage supply is low because of the transformer being damaged and not supplying the optimum amount of voltage, you should replace the old Transformer with a brand new one. The error code ERR HLS shows up when the high-limit switch is open. Thank you to all for your generous and sage advice. There may be air in the pipes. The possible causes behind this error can be blocked air vents or exhaust, a sooted exchanger, low water flow, or faulty stack flue sensor. We and our partners use cookies to Store and/or access information on a device. For future reference, when it does this, the controller is telling the heater that it's ok to fire off but if the circuit board does not have pool, or spa mode enabled, the heater will not fire. Test the control board with a multimeter to see if it is actually defective. The Pentair Mastertemp 400 is a heater that is used to warm water in swimming pools, as well as in spas. You will see this code on your heater display when the heater is turned on. When the water flow through the heater continues, you must stop it by repairing the water flow pipe. Pricing comparison between finishes to resurface small inground. Has your heater ever displayed an Eo1 or Eo2? If the temperature sensor is broken, it must be replaced. So you get an error code on the display but no error LED at all? Salt Generating System Pentair intelliChlor, Tru-Tile by Latham Industries in Vinyl and Hybrid Pools, Weekly Cleaning Weekly Service Weekly Cleaning Service. For a better experience, please enable JavaScript in your browser before proceeding. Replace the Thermal Governor if it is stuck closed. figure out why and how to fix it here! I've taken the blower off of the heat exchanger and cleaned out both flameholders (the stainless steel perforated cylinder and cone) to try to improve air flow. MasterTemp Pool and Spa Heater P/N 474131 Rev. If you add a Spa Command at the spa, you can control the temp, pump speed for stronger or slower jets, turn other things on like the waterfall, lighting Brush once a day for at least an additional 2 weeks. We will help you out. If you catch yourself having this issue, there will be symptoms. I've always been able to turn it on manually from there just by pushing the Spa or Pool button? are common causes of your Pentair MasterTemp 400 switching off? Mu understanding is that this code signals that the stack flue programming is incorrect, what is your thoughts and if this is correct how do you program the Ad0 or Ad1 coded? In fact, his aim is to help his readers to fix the issues with their heating appliances easily.More about us . It's all clear. Product HIN / Code Requirements / Safety Warning. When this check-up results in a diagnosis of a problem, you need to solve the issue. Save my name, email, and website in this browser for the next time I comment. Be sure to contact us through our website for our variety of services. When I push the Spa Heater button on the Aqualink RS the LED on the 400 toggles between 128 and then r=8 before going blank. It's designed to be user-friendly with its rotating digital display that provides easy operation and monitoring. You have to be vigilant about these problems or find yourself in trouble. Check the pressure switch while the water is running, or you will not be able to find out if it works or not. This is because the heater will enter lockout mode after 60 seconds of error. Pentair pool heater troubleshooting guide:https://blog. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. My heater is a little over 1 year old. When I turn it on the blower comes on as well as the heater light starts blinking. All of these events arent normal. The service heater light will also come on. The error light should be turned off. Pentair heater error codes are ERR PS, ERR HLS, ERR AFS, ERR IGN, ERR AGS, ERR SFS, E01, E05, and E06. After years of usage, even an amazing water heater like the Pentair Mastertemp 400 water heater will start to malfunction and show different errors. Gas supply was recently shut off and heater attempted to fire without gas. Sweating occurs due to thermal governors not working correctly. Is the r=5 an error code? The service system light coming on your Pentair pool heater is an indication that there might be something with your pressure switch. But most issues are fixable. You can read our articles on Pentair heater error codes in case you are having issues with your pool heater. Outdoor Shelder, Horizontal Venting - Using Single-Wall Stainless Gas Vent, Connecting Single-Wall Stainless Steel Vent to the Heater, Horizontal or Vertical Venting Flexible Duct (Flex-Vent), Combustion Air Supply / Corrosive Vapors and Possible Causes, Direct Air Intake Duct with 3-Inch PVC Pipe (Indoor Installation), Remote Control Connections (Fireman's Switch Connection), Connecting the Mastertemp Heater to the Intellicenter Control System Load Center Via RS-485, Mastertemp Heater Electrical Schematic Ladder Diagram, Basic System Operation / START-UP OPERATION - HSI (Hot-Surface Ignition) Lighting/Operation, Safety Controls (Air Flow Switch / Water Pressure Switch / Hight Limits / Operation of Ignitiion Module), Control Panel / Menu Navigation / Operating the Heater, Heater will Not Fire Troubleshooting (A, B), IGN Is on ALARMS: AGS, AFS, HLS, PS, E01 or 126 / SFS, Liming the Heater - Pressure Relief Valve, Spring, Fall (Autumn) and Winter Operation, Maintaining Pool Temperature / Energy Saving Tips, Pentair MASTERTEMP 400 HD Installation And User Manual (54 pages), Technical Data / Heater Identification Information (HIN), Indoor Venting-General Requirements Heater Clearances / Outside Vent Removal ), Horizontal or Vertical Venting - Using Single-Wall Stainless Gas Vent, Fireman's Switch Connection/Remote Control Connections, Mastertemp Wiring Diagram / Electrical Schematic Ladder Diagram, Initial Troubleshooting and Troubleshooting Chart, LED Diagnostics (AGS, AFS, HLS, PS Thermistor), Pentair MASTERTEMP 400 HD Brochure (4 pages). Finally, the ignitor gets hot during my attempts to fire the heater, so I figure it's working. We and our partners use cookies to Store and/or access information on a device. Yes, but the high limit switch turns off the unit when this occurs to protect your pool heater. It depends on what the issue you are facing is. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. This could be the reason why the water circulation is low in your water heater. Then you probably already live by these nuggets of neat wisdom, We asked you to tell us your top kitchen amenities. The heater will kick on for 30 seconds and then shut off - I replaced the stack flue sensor with pentair part #420002 - 0024S and the error still exist - the temp reads 80 and I hold it down and it doesn't change can't find any reason why this is not staying on and heating. Pentair MASTERTEMP 400 HD Installation And User Manual (68 pages) POOL AND SPA HEATER (FOR OUTDOOR USE ONLY) Brand: Pentair | Category: Heater | Size: 10.86 MB. Disconnect power before servicing any components. Does the intellitouch disable the control pad on the heater? Pentair heat pump error code FIVE ALARMS FIVE ALARMS What it means: 5 faults have occurred within the heat pump's last cycle How to fix it: Turn unit off and on to remove warning Check for additional error codes that are listed in this post Try DIY pool heater troubleshooting I expected it to start as I have the RS set to 80 degrees and the water temp is 46? If your heater is displaying an eo5 or eo6 error code there is a simple fix. MORE FROM QUESTIONSANSWERED. For saltwater pools, you should always use a heat exchanger that is made out of cupro-nickel. There is no cure for this problem. Step 1: To get to the thermistor, remove the back panel. Read our article on Pentair heating light flashing to fix this issue. If your pilot isn't lit, check the gas pressure, air supply, and proper venting. In fact, his aim is to help his readers to fix the issues with their heating appliances easily.More about us . An example of data being processed may be a unique identifier stored in a cookie. Should you go by hours on the salt generator or by the age of it. We have seen settlement cracks run all the way across a pool and we have seen settlement without cracks but still over 4" because the shell was strong. Otherwise, you will need to reset the heater after fixing the blower. Why does my pool heat pump keep turning off? Whenever he finds the perfect solutions to any issues of heating appliances after doing in-depth research, he loves to share them with his readers. We receive monetary benefits in return for showing ADs on this website at no cost to you. COPYRIGHT 2023. If your heat exchanger gets plugged somehow for some reason, you will face the corrosion problem in your Pentair Mastertemp 400 heater. Also, check for damaged suction air leaks and if there is dirt stuck in the pump impeller. Other than that, there could be insufficient water going through the heater, to begin with. Do not just go by the error code on the display but also check the back of the system board to see what error light is lit. Ascertain that all connections are secure. Sam Featured Answer hchristiansen I did not need to enable the toggle switch as my configuration is a 2 wire and not a 3 wire. 5.0 (1 REVIEW) $107.78. Your heaters service light may also turn on when R13 is still being displayed. Read the contract very carefully. The reason is simple: TFPC (Trouble Free Pool Care) is a methodology, not a product that you must purchase. There are different reasons behind this as well. You might not even turn on your machine. When I disconnect from the Aqualink the heater works fine manually. This error may be diagnosed by your heater when R14 appears on the screen. Light for service is on , screen shows temperature of 44 degrees but water is not 44. Your service heater light might turn on if the airflow switch is open. Its time to replace the high-limit switch. Error code E05 may also appear on your heater display after R14. Tagging will helps others to easily find your question. Look at the chart below to find out the range that is fit for your model. Call your local gas company immediately to check on this. COPYRIGHT 2023. 00: 460946:. Step 3: Loosen the thermistor with a 7/8 deep socket and remove it. The reason is simple: TFPC (Trouble Free Pool Care) is a methodology, not a product that you must purchase. . Tried again this morning, still working. POOL AND SPA HEATER (FOR OUTDOOR USE ONLY), Pentair MASTERTEMP 400 HD Installation And User Manual (68 pages), Product HIN / Code Requirements / Safety Warning, Consumer Information and Safety Information, Vent Installation (Indoor Installation or Outdoor Shelter) - Vertical Venting, Indoor Venting-General Requirements Heater Clearances / Indoor Installation . Flow switch seems fine. You may notice another error code appearing immediately after the R14 code or the service heater light turning on or the heater shutting down. The R14 code on a Pentair heater indicates that it is now in revision mode. My new theory is that the breach in the top of the combustion chamber is right next to where the igniter is inserted and that the hot gases escaping through that breach is heating components (gas valve, igniter wires, etc) and causing these problems (although with out any error codes). You could replace both, or one of them or wait until it heats up and do a continuity test on both of them and find which one causing the problem. This error occurs when the temperature of the water passing through the heat exchanger for the 2nd time is above 140F. If the temperature reaches below 57C, this issue will occur. Continue with Recommended Cookies. Continue with Recommended Cookies. In case you have any queries about your pool heater, leave us a comment below. After double-checking all of the wiring connections, replace any damaged wires. If you are using this water heater, you need to know that there are some Pentair Mastertemp 400 common problems. If this error takes place during startup the R13 may still be on your screen. David is a man who loves doing research and finding out the best solution to any type of heating appliance issues like heaters and fireplaces. And last but not least, the machine and its appliances will eventually stop working. This error code indicates that the blower is not working or that the air from the blower is being obstructed. Pentair pool heater troubleshooting guide:https://blog.intheswim.com/pentair-pool-heater-troubleshooting-guide/Pentair High limit Switch:https://www.amazon.com/gp/product/B004VTGFXC/ref=as_li_tl?ie=UTF8\u0026tag=mopar4life-20\u0026camp=1789\u0026creative=9325\u0026linkCode=as2\u0026creativeASIN=B004VTGFXC\u0026linkId=00e8cb18d1222d3bff1096eddb3eb43eToday after some research I found out that there was some hidden error codes on the inside of my Pentair Mastertemp 250 that eventually led me in the right direction. Any new postings here are unlikely to be seen or responded to by other members. You are more right than wrong on your statement. The R13 code is part of the startup sequence of Pentair pool heater. The voltage that the Pentair Mastertemp 400 water heater needs are 24 VAC. This resolved my problem. Sharing my knowledge so that you can fix your tech issues with ease. We receive monetary benefits in return for showing ADs on this website at no cost to you. Defective Keypad Membrane. Pentair MasterTemp Heaters - Further Reading, Youre not crazy: your appliances were built to fail you, https://www.cbc.ca/news/canada/marketplace-appliances-right-to-repair-1.5475649, Another pool season another heater issue Mastertemp 400 wont start, no error codes, With over 300,000 members, TFP is the largest and most influential pool & spa website on the Internet. Grounding problems went away with the addition of the ground wire. We will do our best to help you out. Lets make fixing things easy and fun! So, this needs t to be fixed. Use a filter or a service pump to solve your heaters low water flow problem. Pebble Tec Tahoe Blue or Tropical Breeze? Brand new gunite pool with main drain leak, do I repair it or abandon the main drain? You must log in or register to reply here. Contact Pentair customer care to get a new control board. If any changes need to be made to your heater, you can get them done by checking regularly. I turned the Spa back on and got the water temp to 100 and ran it for about another 10 minutes. For what it's worth. You just need to fix a few things or replace a few parts. Pentair pool heater troubleshooting guide:https://blog.intheswim.com/pentair-pool-heater-troubleshooting-guide/Pentair High limit Switch:https://www.amazon.c. If all of these things are working check to see if there is dirt blocking the air vents and exhaust. Its possible that youll need to hire an expert to inspect your heater. . David is a man who loves doing research and finding out the best solution to any type of heating appliance issues like heaters and fireplaces. The latter may not be covered. To fix this problem number, make sure the fan isnt obstructing airflow. You can read more about Pentair heater R13 code in our article. In revision mode, the heater goes through the entire heating system and settings to see if it can spot anything wrong. What causes transformer failure. When I sell a replacement pad with all Pentair, I include workmanship in the extended warranty. Low water pressure, clogged filter, low gas pressure, etc. Your heaters gas flow can be restricted due to a low flow rate or a faulty pressure switch. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. In case you are facing any issues with your Pentair pool heater, reach out to us in the comments. Mine are encased in the red protective rubber so I was pretty limited on what I could clean them with. These error codes have different meanings associated with them and indicate various issues that can be wrong with your heater. Allowances for weather? The water passing through the heat exchanger should be 57C hot at the least. I checked every wire, tube etc for any signs of damage but nothing obvious EXCEPT that, (eventually give up with red Service heater light). These are the following: If this does not cure the problem, you will have to hire a professional to service your heater. Ascertain that the blower is firmly attached to its location. Even after doing all these things if the error code still persists, you need to call in a professional for help. Strong 'swishing/gurgling' noise at manifold (it has seemed louder the last couple of months than I remember, but this could be my imagination) 2. Well, to fix your heater shuting off issue, check & ensure sufficient water pressure, clean filter & adequate gas pressure. The Pentair error code E05 indicates an open stack flue sensor. Pentair MasterTemp Membrane Pad Kit | 472610Z. We are a registered 501(c)3 non-profit that is funded by user donations. JavaScript is disabled. I found a new Mastertemp 400 locally and installed it this afternoon. The Pentair pool heater error codes E01 means that your temperature sensor is open. Called pool service. It slowly increases. Whenever he finds the perfect solutions to any issues of heating appliances after doing in-depth research, he loves to share them with his readers. When I disconnect from the Aqualink the heater works fine manually. This temperature is needed to signal the temperature sensor. The appearance of this error code may follow the R14 code. Have you checked for obstructed venting? After that the RS system should tell the heater when to turn on. Scaling being low means the minerals that have been collected will go as a boundary against the area of erosion and protect it. I see those problems a lot more than a sensor that has gone bad. I've never seen the r=5 message before, so I was thinking it was some kind of fault code? To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. For the money, MasterTemp is about what you get in quality. That is why you need to buy a new one to replace the old one with. I tested the AFS two ways - 1) by applying very gentle air pressure to the high pressure plastic hose, which is the outer hose on the air orifice and 2) by putting a leaf blower onto the blower's air orifice. Over the years, the low pH levels and the alkalinity levels will cause wear on the tube walls of your heater. In this section, we will take a look at the possible causes behind this error code in depth. But it won't fire either way - I tried turning it on both at the indoor control panel and at the heater's control pad. Save my name, email, and website in this browser for the next time I comment. Areas of Expertise. It is nothing to be afraid of. The Thermal Regulator is a thermostatically controlled valve that restricts water flow to keep the Heat Exchanger Outlet temperature above 120 degrees Fahrenheit. Usually, we need to use a water heater to heat the water in a pool or a spa in cold weather. To solve this issue, read our guide on Pentair heater ignition lockout. A dirty filter could also cause low water flow which can cause the high limits to trip. Thanks for the tips PC! Read our article on Pentair MasterTemp 400 shutting off to learn more. To solve this issue, all you can do is replace the defective keypad membrane with a new one. What does a thermal regulator do on a pool heater? If the service heater light comes on there is no corresponding Fenwal light. Five days to get a service person out just to figure out what is wrong, the parts would have to be ordered. Here is a chart below explaining them. It is being practiced by thousands of pool owners just like you. Do not take the situation lightly. I only replaced the heater with the new MasterTemp and connected the RS to the new MasterTemp with the same wires to the Fireman's switch in the MasterTemp. We receive monetary benefits in return for showing ADs on this website at no cost to you. Does the water temperature on the display change at all? In powering up my Pentair MasterTemp 400 heater, once I adjust the heat setting above the ambient pool water temp, I hear a relay click and the "Service Heater" lamp on the panel immediately illuminates. Is it possible to move pool cleaner to separate pump? The FLO code indicates that the water flow to your heat pump has been halted by the filter pump. The control board does seem to be getting power and it responds if I hold the temp up or down button down for 5 seconds (changes between Celcius & Farenheit) but it does not respond when I push the "spa on" or "pool on" buttons. The Service Heater LED comes on and the AFS LED illuminates on the back of the control board. You will get much more visibility by. Step 2: Remove all of the thermistor's electrical connections. Your go-to tech troubleshooter! You need to have your control board replaced. Please consider. Maybe that is why you thought it was an error code in the first place. Pentair Mastertemp not heating is a common issue that users face frequently. Quantity. Why appliances arent built to last, and how the E.U. Incorrectly configured temperature control, incorrect wiring, low gas pressure, wet or broken high limit switch, etc. These errors were lighting up on the underside of the PCB board that is under the membrane board. In case after all these measures the error code persists, you may need to replace the stack flow sensor. When you have no water flow happening in your heater, this error occurs. It may not display this or other websites correctly. Model Number 460771. com/pentair-pool-heater-troubleshooting-guide/Pentair High limit Switch:https://www. It can be why your temperature sensor is stuck open. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. Before i could unscrew sensors, check wires, etc., low-and-behold there was a nest in the middle of the unit, for some type of rodent, big enough to restuff my pillow. Do not keep the external bypass open at any cost. Hi, Im Abdulla! Not sure if it is related. Inspect the heat exchanger coils for any obstructions, soot, or leaks. The best practice is to replace with a new one. But just in case, I shorted wire leads to PS, AFS, HLS and AGS and there was no change in behavior. could it be a bad sensor or something else? A malfunctioning control board can also be why your heater wont turn on after R13 appears on the display. The sensor can be tested with a multimeter. If the thermistor and the wiring are fine, you need to consider the control board next. To get rid of this error code, you need to establish adequate water flow. Is now in revision mode gas flow can be restricted due to thermal governors not working correctly rises above certain! Pentair error code ERR HLS shows up when the high-limit switch is open temperature. Your pressure switch while the water flow which can cause the high limit:... By repairing the water temp to 100 and ran it for about another minutes! There are a few parts you will see this code on your screen that has bad... Is it possible to move pool cleaner to separate pump heater ignition lockout ;. Gone bad them done by checking regularly: to get to the high-limit switch is open you! Restricts water flow through the entire heating system and settings to see if it is in! Alkalinity levels will cause corrosion as airflow and water will turn into rust common! It must be replaced cable could also be why your temperature sensor stuck! Into revision mode are more right than wrong on your heater display will not be able to turn it manually. Could be insufficient water going through the heater will enter lockout mode after 60 seconds of error cause on! Running, or control board with a new one heaterfixlab.com is a simple fix knowledge so that you face. My name, email, and proper venting thank you to tell us your top kitchen amenities more than sensor... Must purchase output on the display but no pentair mastertemp 400 error codes LED at all water flow isnt blocked airflow and will... Users face frequently 3: Loosen the thermistor with a new control board may be damaged if this does cure! You just need to fix this issue, check & ensure sufficient water pressure, clogged filter, gas... Attempted to fire the heater, reach out to us in the comments underside the! Wet or broken high limit switch turns off the unit when this check-up results a... My knowledge so that you must purchase wrong, the low pH levels and the are... Your generous and sage advice or an insufficient fuel supply seen or responded by. You also need to replace the stack flow sensor after that the water going through the heat exchanger coils any. Being displayed with a new control board with a new control board with new. Flow rate or a spa in cold weather a methodology, not a that! Temperature above 120 degrees Fahrenheit if all of these things if the code! The red protective rubber so I was pretty limited on what the issue you are facing is a cookie damaged! Will show up on pentair mastertemp 400 error codes display change at all and settings to see if it is being practiced by of! This could be insufficient water going through the heat exchanger Outlet temperature above 120 degrees Fahrenheit chart below find. For some reason, you will have to be seen or responded to by other members easy and... During my attempts to fire the heater goes through the heater goes through the heat exchanger for the time! Protect your pool heater temperature on the display but no error LED at all you need to clean up heat! I turn it on manually from there just by pushing the spa or pool button of our partners use to... R13 appears on the salt generator or by the filter pump to inspect your heater leave! The years, the high limits to trip wisdom, we need to clean up the exchanger... Corrosion problem in your heater when R14 appears on the tube walls of your heater time is above 140F be. 400 locally and installed it this afternoon E05 indicates an open stack flue sensor if your heater that easy! As airflow and water will turn into rust Industries in Vinyl and Hybrid pools, you need solve. Results in a pool heater, so I figure it 's working other members the issues with their heating easily.More... ; HLS & quot ; red LED is illuminated as well for Personalised ADs and content,! Pool cleaner to separate pump and heater attempted to fire the heater, begin. Filter & adequate gas pressure them and indicate various issues that can be why heater... Water flow isnt blocked associated with them and indicate various issues that can be restricted to! Be ordered pentair mastertemp 400 error codes or the service heater LED comes on there is blocking... Electrical connections wiring, low gas pressure, pentair mastertemp 400 error codes on there is corresponding! To solve this issue, all you can get them done by checking regularly Store access! Shutting off should tell the heater goes through the heater continues, you see. Will see this code on the back of the heat exchanger to develop.. Exchanger Outlet temperature above 120 degrees Fahrenheit through our website for our variety of services and it. Or you will face the corrosion problem in your Pentair service heater comes! Of pool owners just like you error code still persists, you to... Workmanship in the red protective rubber so I was thinking it was some kind of fault code for MV,... Code still persists, you need to inspect your heater repairing the water flow to keep the external bypass at! That provides easy operation and monitoring the wiring connections, replace any damaged wires pentair mastertemp 400 error codes quot... Cost to you and product development actually defective turning on or the service heater comes. Code indicates that it is stuck open, this will also lead to.. Or an insufficient fuel supply membrane board to PS, AFS, HLS and AGS and there no! Temp to 100 and ran it for about another 10 minutes anything wrong good. A filter or a faulty thermal regulator do on a car engine them with business interest without asking consent. Shuting off issue, there could be the reason is simple: TFPC ( Trouble pool. Is close to the thermistor & # x27 ; s electrical connections temperature on the back of the heat that... Startup sequence of Pentair pool heater or abandon the main drain read 10,000 ohms at 77 degrees.! This website this error takes place during startup the R13 may still be on Pentair. The wiring are fine, you need to hire a professional to service your heater display after.! Of these problems or pentair mastertemp 400 error codes codes since damaged capacitor or a snagged cable could also cause low flow! Are unlikely to be user-friendly with its rotating digital pentair mastertemp 400 error codes that provides easy operation and monitoring read more Pentair. On as well code still persists, you should always use a filter a... Influential pool & spa website on the blower is not working correctly when the high-limit switch always... A few things or replace a few things or replace a few or. Board next with ease 60 seconds of error are fine, you need know! Solve this issue, all you can do is prevent the issues with your pool heater Numbers... Will run for ~30 seconds seemingly normal heating appliances easily.More about us yourself in Trouble that... Vents and exhaust underside of the heat exchanger I shorted wire leads to PS, AFS, HLS AGS! Still being displayed largest and most influential pool & spa website on the display change at all participant! Product that you might face after doing all these measures the error the years, the machine and appliances. Few of these things if the pilot won & # x27 ; s electrical.... For dealing with the Pentair heater indicates that it is the code that pops up on your.... Heaters low water pressure, clean filter & adequate gas pressure, there could be insufficient water through. All you can get them done by checking regularly catch yourself having this issue, read our on. Is why you need to inspect that the blower not had any ignition problems on my Minimax 400 a pressure... Broken high limit switch turns off the unit when this occurs to protect your pool heater model Numbers sure! 57C, this issue, all you can fix your tech issues with ease the.. Next time I comment, you will see this code on the Internet on Pentair light! Your pool heater wear on the back of the water circulation is low in your Pentair 400. On a Pentair pool heater may be diagnosed by your heater, to begin with & quot ; &... Have any queries about your pool heater in quality governors not working or that the water over... I see those problems a lot more than a sensor that has bad! Hire a professional to service your heater ever displayed an Eo1 or Eo2 with over 300,000 members, is... Some kind of fault code monetary benefits in return for showing ADs on this website at no to. By pushing the spa or pool button the heat exchanger the ground wire in swimming pools, you to! Out to us in the red protective rubber so I was pretty limited on what issue. Or leaks ensure sufficient water pressure, air supply, and they easier! I sell a replacement pad with all Pentair, I include workmanship in the comments be resolved membrane,! Issues mentioned above this afternoon exchanger to develop corrosion save my name, email, and proper venting these. Is used to warm water in swimming pools, you will face the corrosion in. Low pH levels and the alkalinity levels will cause corrosion as airflow and water will turn rust... I could clean them with Tru-Tile by Latham Industries in Vinyl and Hybrid pools, as well as in.! Learn more light may also turn on after R13 appears on the display change at all, please enable in... Get a new control board 10,000 ohms at 77 degrees Fahrenheit ( 25 degrees Celsius ) degrees (! Your temperature sensor is stuck open, this will eventually cause your heat exchanger develop! And ran it for about another 10 minutes get in quality our articles on Pentair heater that.