However, the easy filter-cleaning steps are: Your Pentair pool heater keeps shutting off due to inadequate water flow, a closed valve, a dirty filter, a control board malfunction, low gas pressure, a faulty igniter, and a faulty ignition control module. Also, do you think $4,100, all in (including tax, install/labor, new heater, extra parts) is reasonable or thats really high? Then turn on the heater to test if the module is sending the ignitor the proper voltage. We have a Pentair pool heater that all the sudden kicked off Saturday. If not, replace it. I have a Pentair 400 master temp. How do you test an ignition control module? Quantity: $172.56. There are some common temperature issues that users face. Copyright 2022 In The Swim. Remove the AGS Switch from the Manifold by unscrewing it. Hello Step 4: Take the switch cover off. Replace the defective parts. We have a new Pentair Mastertemp 400. I have a Master Temp 400 pool heater it does not turn on. I also noticed that the flap wasnt opening even at 3450rpm and 20-25psi. Is enough water getting into the heater? Hi,e repl In case you have any queries regarding your Pentair MasterTemp 400, leave us a comment. To fix your issue, it would be wise to contact the Pentair customer support center or your local Pentair dealer to inspect your unit & fix the issue. Pool Equipment site managed by Itsopro Consulting | 2023 TC Pool Equipment Co. Pentair MasterTemp 400 Pool Heater Ignition Module | 476223, View Cart {{shoppingcart.totalQuantityDisplay}} Item(s), Pentair MasterTemp 400 Electrical System Parts, #476223 Pentair MasterTemp 400 Pool Heater, Ignition Module, #476223Pentair MasterTemp 400 Pool Heater, Ignition Module, New Smart MasterTemp 400 Ignition Control Module, NA/LP, MasterTemp 175/200/250/300400NA, MasterTemp 400LP, MasterTemp 400 ASME and MaterTemp 400 HD Model Heaters. In case the issue persists, replace the control board. Your heater's ignition control module is the most likely culprit that will need to be replaced. The biggest fear about theheat exchangeris that corrosion can occur to the relatively soft copper finned tubes, causing them to develop pinhole leaks. First, check that the fuel supply is adequate and the gas pressure is good. As always, use caution when working with your heaters electrical system. Your wet heater may sometimes work or sometimes refuse to turn on. We receive monetary benefits in return for showing ADs on this website at no cost to you. If you are sure that the heater is getting power from the outlet, examine the fuse inside your heater. To get rid of Pentair MasterTemp 400 code E05, first, check that the fuel supply is adequate and the gas pressure is good. Without a working control panel, your heater is no good. Membrane switchs damaged or faulty wiring. Thank you Frank Supercedes #42002-0052S. I have a pentagram minimal plus heater and when I turn it on it stays on at low thermostat setting but when I try and increase it the heater kicks off and then wont come back on. We receive monetary benefits in return for showing ADs on this website at no cost to you. To fix your heaters control panels hitch, do the following: Note: Checking the voltage is quite risky and has accident potential. like it is having trouble exhausting, check for birds nest or heavy spiderwebs or leaves on the heat exchanger. The time it takes a heat pump to heat a pool is determined by a few factors. The burners on this type of MasterTemp/Max-E-Therm heater are unique from previous generation pool heaters. He loves to share his knowledge & helps others in fixing their units & saving their pockets. Also, disconnect the legacy ICMs wires and connectors. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. When your water temperature rises above a safe level (135F), the high limit switch detects this and promptly opens the heat exchanger outlet. Noise 13. We activate both functions from a Jandy control inside the home Theres no code on the machine outside to indicate possible problems. how to fix Pentair heater error codes problems. How to Reset Honeywell Thermostat? If its unclean, give it a good cleaning with a hose and check for fractures in the basket lid. Check to see if anything is stuck on the stove. To test, unplug the ignitor and place your meters leads on it, setting the voltage to volts. We manually turn up the temp to a warmer setting when we swim while the system is running. If it stays running at the low thermostat setting, then let it run and if it never shuts off, until the pool is getting too warm then shut off, and turn on/off manually for a few days, until you can get a new thermostat. This problem has a very basic and straightforward fix. More about us. Step 2: Remove the nuts that secure the Igniter Bracket. In fact, his aim is to help his readers to fix the issues with their heating appliances easily.More about us . Now that you know how to tackle all Pentair MasterTemp 400 common problems, hopefully, you will maintain your heater well. And then connect the new igniter to your heaters motherboard wires. The 2nd is after modified the 3-port valve to the return lines. What else can impact the temp reading? Pentair MasterTemp 400 error code E06 is displayed on your LED screen when the stack flue sensor has shorted. Malfunctioning Blower 9. So be careful while tasting the transformers voltage. I just didnt trust them anymore. Thats acting like a bad circuit board, but it would need testing to be certain, could also be moisture behind the display panel, near the circuit board. To get to the burner inside the heater, open it up. The blower fan regulates the correct amount of exhaust and plays a large role in correct combustion. Frank, I do concur with the pool tech, that this seems like a wet circuit board, but perhaps also a damaged circuit board at this point. The green spa or pool light comes on but the orange light for the heater doesnt come on. Connect each multimeter prong to the terminals on the stack flue sensor. Contact customer service and tell them about the issue. Malfunctioning Ignition Control Module. Replace ignition or control module. Then, replace the faulty heater part or parts. Due to the sensor malfunction, your Pentair Mastertemp 400 heater can stop turning on. Is it possible to replace the heat exchanger or do I need to replace the entire heater system altogether. The control panels faulty circuit breaker causes no power in it, and thus the panels LED light will remain off. Get a new igniter, the same as the previous igniters part number. Home / Pool Repairs / Equipment Repairs / Pentair Pool Heater Troubleshooting Guide. Save my name, email, and website in this browser for the next time I comment. Flame Won't Stay Lit 8. Ensure that the power outlet your Pentair heater is connected to is good and provides the appropriate amperage for the heater. The blown 1 amp fuse in your heaters control panel creates a short on your heaters system board. To reach the switch cover bolt, unbolt and remove the Upper Left and Upper Right Jackets from the heater. However, after several attempts, even if your heater starts when the SFS code is on, your heater will not stay lit. Sounds like the pool thermostat is not responding, either from a loose connection, or crimped wire or bad thermostat / potentiometer. Thus your Pentair Mastertemp 400 fails to turn on due to the igniter with a low resistance to the ground. A defective thermistor can cause an ignition lockout. 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. Follow the actions outlined below to replace it. when temp is down it kicks on as soon as it goes over setpoint it shuts off. If the burners are not igniting, check for clogs in the burner orifices, you can ream them out with a tiny wire, just a strand. After every one to three months or when you get 510 PSI of pressure on the air filter, your Pentair MasterTemp 400 D.E. And also the exhaust temperature will remain below 250 degrees. Pentair Mastertemp 400 Heater Not Turning On. To allow water to pass through the heating system, make sure the valves are open. To see if the thermal regulator opens, submerge it in water. My heater also powers up, displays lights, without anyone touching it. Here are the video links. COPYRIGHT 2023. Pentair Mastertemp 400 wont turn on mainly due to the defective igniter, incorrectly grounded burner flame holder, malfunctioning Ignition Control Module, and lousy control fuse. Clogged Pool Filter 8. Hi Barbara, I call that cycling on and off, and that can be related to low water flow, and jumping out the pressure switch can tell you if flow is the problem, in the absence of flow error codes. If your Pentair MasterTemp is making a knocking sound, it can be because of a faulty manifold bypass or a broken temperature regulator. Step 1: Take off the left side panel of the heater. Be sure all connections are clean and tight. So you could save $1000 by buying online and having a company install. Of course, there is also an internal bypass in most gas pool heaters. Any suggestions? The pool filter inevitably gets dirty due to its interaction with the pools water. Any assistance would be helpful or recommend a competent technician in the San Diego, CA area would be helpful. The level of resistance will alter if there are cracks in the HSI that affect performance, but they may be too slight to perceive. We have a Pentair 300 for both spa and pool heating. Low Gas Pressure 4. We have a Pentair minimax 100 Dsi. Full-text digital display combines new functions and a user-friendly menu for easy operation and diagnostics. If it fires off everything works fine a few minutes then shuts off.Ideas?Filter is clean. and follows into a 6 page flowchart to step by step troubleshoot a Pentair or Sta-Rite pool heater, and get it firing again fast! The sensor is operating if the resistance is 3.5 ohm or above. We receive monetary benefits in return for showing ADs on this website and by linking to Amazon and affiliate sites at no cost to you. Sta-Rite 42001-0052S Ignition Control Module, Digital. Troubleshooting the stacked exchanger type of heater is not much different than other electronic or digital pool heaters. To accomplish this, you must: As you turn on the heater, the error code should no longer be on display. If it is not working, contact customer service to send you a new control board. Hi Emma, your heater has two thermostats, for convenience, to keep one set to spa temp and one set to pool temp, so you dont have to go back and forth, and try to remember the exact setting each time. I have replaced the Stack sensor thinking that it was the problem. Hi Lance, those are good ideas, first lets think about flow rate. The following instructions will guide you through the entire process of replacing the Ignition Control Module, ICM of your Pentair MasterTemp 400. I run the heater and this time it did something different. As soon as I read his reply about the 3-port valve going into the heater, I thought right away it all make sense. Clean up all the flue sensor orifices to ensure there is no grime on them. And thus your Pentair Mastertemp 400 stops turning on. You may be able to troubleshoot the thermostat, or bypass it with a jumper wire, to determine it has failed. This problem needs to be fixed ASAP. Change the faulty igniter and the bad ignition module. When the folks came to open my pool last week, they said it was leaking and that the owner was coming out to look at it. Web these pentair mastertemp 400 problems relating to temperature are explored below. Pentair MasterTemp 400 heating light flashing is caused when the heater is calling for heat but not igniting. A defective AGS switch can cause ignition failure. Gas accumulates at the orifice until it reaches the chambers interior, causing a backfire. See if the igniter fires when you turn on the heater. So far I have replaced the thermal regulator, igniter, thermistor and the bypass valve in the manifold. A local pool service expert suspected the electronic control board may have gotten wet (we have had a good deal of rain here in northeast ohio recently) thus the odd error messages that I can not find in the owners manual. Hello, I have a Mastertemp 200. So, now you have a crystal clear idea of why your Pentair Mastertemp 400 wont turn on. The pool heater is about 4.5 years old. Thank you for your time and response. Gave me directions to check thermistor output which I verified is working correctly: 7.7K ohms for 89 degree water. Following the Pentair Mastertemp 400 manual, connect the wires during your heaters ICM replacement. Dirty Filters 12. It continuously bounces between pool and spa. Heat exchangers can corrode due to pinhole leaks on copper tubes, saltwater, lack of alkalinity, and low pH levels. Take the heaters side panel off and dry the connections with a blow dryer. (Seconds! This Digital Module Ignition Control Is Designed To Use With Minimax Nt Std, Ln Pool And Spa Heater With Ddtc Controller Models 200, 250, 300, 400 ; Digital Module Ignition Control Replacement ; Fits Minimax Nt Std, Ln Pool And Spa Heater With Ddtc Controller Models 200, 250, 300, 400 ; Country Of Origin: Taiwan, Province Of China Our Pentair pool heater troubleshooting guide will have your heater back in business in no time. Now when these switches become defective, the Membrane Pads indicator light will not show the heating demand status. If the heater stays running with the pressure switch bypassed, then see what can be done to improve flow rate. Pentair Mastertemp 400 Wont Turn On [10 Troubleshooting Tips], 2. Reduce strength of exhaust vent and/or number of elbows. When Pentair MasterTemp 400 ignition lockout occurs, your heater will display the error code ERR IGN. What can cause your Pentair MasterTemp 400 blower not working is a bad blower motor or a defective control board. In about 20 seconds, the gas valve opens and ignition should occur. Did you replace both Hi Limit Switches? Remove and adequately clean the filters remaining large debris. I stopped the company servicing my pool last year when they kept charging me for servicing the heater for the exact same issue. If the sensor resistance is below this range, you should replace your Pentair heaters Stack Flue Sensor. Inadequate water supply to a filthy filter or a closed valve is why your Pentair MasterTemp 400 turns on and off. This also includes replacing any worn-out copper tubes on the machines interior. You must assess the heater, compare it to its overall age, determine whether there is a lot of rust and corrosion development at the bottom of the container, inspect the combustion firebox for broken fire tile, and so on. Again, if it is displaying a lower temperature, the heater may keep heating even if the water is hot enough. . Also, your heater displays the error code ERR IGN. Because gas pool heaters do not contain the massive amounts of gas required to trigger an explosion inside or around them. The wiring diagram is given below for your reference. Defective Control Panel 11. Normally you can smell a little gas when it kicks on but it does nothing. So, the voltage will only appear for about 20 seconds and it should drop out shortly after the gas valves opens. It cycles for a bit then I hear a click either it fires off or it doesnt. My Pentair 250 heater will not stay on the pool setting. It is old and a bit rusty and loud. If you have a successful ignition, the problem is most likely the flame sensor. Hold down your heaters SPA or Pool button to check your Mastertemp heaters exhaust temperature for at least 10 seconds. To resolve this error number, ensure the fan is not obstructing airflow. Its a fun combination of plumbing, wiring and gas. The pump basket blockage or clogged filter causes water flow resistance. Then replace the faulty ICM. Fortunately, you simply need to remove and clean the filter and make sure all the valves are open. The blower needs to be repaired or replaced in this situation. The Pentair Mastertemp 400 is a heater that is used to warm water in swimming pools, as well as in spas. The easy replacement steps are: The lousy control fuse inside your heaters silver box and the power interface board are other reasons which hinder your heater from coming on. timsdca 13 years ago Hi All, I Just had a new pool finished and am having difficulty getting the heater to ignite. Shorted Or Defective AGS 6. It does heat the spa about 1 degree every cycle. Our Pentair MasterTemp troubleshooting guide starts with the error codes shared by both models. Its possible that overtightening the HSI base will cause it to break. Rust or red spiders can clog these up. However, the igniter becomes faulty for the following reasons: The defective igniter prevents your Pool heaters turning on and flame creation and causes a gas leak in your heater by increasing the gas flow. We have a new Pentair Mastertemp 400 unit that we need direction on correctly setting the temperature. The flame ignitor is firing but no gas flow. Then without warning, it started flashing the following error codes: Ad0 then SF 1 then 888 then 128 then r13, then keypad screen would go blank. Replace or Repair your Swimming Pool Filter? The most typical cause of your Pentair MasterTemp 400, not the heating issue is a clogged swimming pool filter. Thank you. Pentair MasterTemp Electrical Troubleshooting: . Still have the power light lit but no other lights are lit. Also could possibly have circuit board problems. I have a MasterTemp 200. Now the igniter replacement is complete. You may need to replace it. The heater manifold, and also the water flow sensor, and the Thermistor connections may be getting wet. Also, alternate your heaters ground circuit and replace the burner bases faulty wire. Without that voltage, the Pentair Mastertemp 400 water heater will not even turn on to begin with. Hi, if the heater is less than ten years old, it may make sense to replace the heat exchanger. In your opinion, is my board again wet, or is my board damaged (perhaps by moisture) and needs replaced? But, need someone to do the work, etcso, probably need to order it through this small, local company, right. The thermal regulator should be in fine working condition. Plastics, paper products, oils, or mulch accumulated in the Filter, Gain access to your pool heaters filter by removing the filter cover. It will create all sorts of trouble from ignition failure to displaying the wrong temperature. It means your stack flue sensor has tripped. In case your Pentair MasterTemp 400 is overheating your pool water, the culprit most likely is the control board. Step 2: Disconnect the system from the Max-E-Therm heater. No volt or lower volt (less than 24 VAC) coming to your control panel from the transformer means your heater will not turn on. It worked well for the last 3 days. When you say the exhaust pipe, I guess you mean the pipe carrying water out of the heater, or leaking on the front manifold? Leaking heat exchangers are often confused with sweating or condensating heat exchangers. If the heater still wont turn on after cleaning the flame sensor, its time to get it replaced. A clogged filter or pump basket can build resistance to water flow to a degree that your heater cant operate as usual. Find many great new & used options and get the best deals for Genuine Pentair Manifold for MasterTemp / Sta-Rite Max-E-Therm 175 through 400 at the best online prices at eBay! Pentair MasterTemp 400 wrong temperature being on display is a common problem. Locate the pressure switch on the front header, and test run the heater with a jumper wire connected to both terminals (or held in place firmly by hand), to jump-out the pressure switch. So, was going to need to be replaced at some point. If the blower is working properly, you may have a faulty air flow switch. Unplug the AGS wires from the Switch. You might also bring the heat exchanger in for maintenance. Also, the gas valve gets low-voltage power from this ICM. I look forward to your advice. Ensure that the pool filter is clean and clog-free. Pentair Mastertemp 400 Igniter Troubleshooting and Replacement TDK DJMASK Solutions 121 subscribers Subscribe 172 Share 27K views 1 year ago Pool heater failing to ignite gas. The ignition system comes apart when the module fails. While running your heater, you need to ensure that the water pressure is not too high. #476223 Pentair MasterTemp 400 Pool Heater, Ignition Module. Make sure the pilot tube is intact and not clogged. Its possible that you have a defective control unit or thermal sensor unit if the burners start up and then shut down. Now, what factors are responsible for these problems and how you can solve these troubles all you will learn by going through this article. Optimistically, if your Pentair heater stops starting, you will fix it by yourself in no time. Learn more about pool care and repair. Pentair MasterTemp pool heater parts are arranged into 3 parts buckets Burner System parts,Electrical System parts, andWater System parts. Ensure your heaters transformer supplies proper power or voltage to your heaters control board. How much does an ignition control module cost? Continue doing so until the plug, as well as the thermal regulator, comes off. Step 4: Insert the new ICM into the Junction Box chamber of the heater. Verify that the igniter is dry and not damaged physically. All you have to do now is double-check the burner. Articles and resources for swimming pool owners and DIYers. Replace everything in its proper location. Freeze Damage Bad Control Fuse 5. Web pentair mastertemp . The accuracy of the heater temperature display was increased as a result of this. Older style heaters use a low horizontal manifold that supplies dozens of individual burners across the bottom of the burner tray, shown at left. Paul, that sounds like an external heater bypass arrangement, used when very large pool pumps are used, to allow some of the water to bypass the heater. Faulty Temperature Sensor 9. An ignition failure can be the result of a failed flame sensor, bad igniter, malfunctioning ignition control module, faulty control board, tripped or broken automatic gas shutoff switch. Low water flow is the cause of up to 70% of all My heater wont heat service calls. Even the new MasterTemp above ground pool heater has the same design, and the same troubleshooting procedure. The valve has to allow enough water into the heater, not too little, not too much. To begin, try cleaning the flame sensor and seeing if that solves the problem. A thermostatically activated valve is the thermal regulator. Fill a jar halfway with 130F water. The reasons for which the ICM goes bad are: The Ignition Control Module is in charge of your heaters ignition sequence and timing. After a minute of starting a Pentair heater, optimum airflow is achieved in the system. Today I saw that the multiple error codes i noted above are back, and heater controls seemed to be disabled (it rained all day yesterday, but I could hear the heater cycling on and off yesterday as water temp dictated, though overnight it was damp and foggy). Improperly Grounded Burner Flame Holder, Ignition Control Module Replacement Instructions, Pentair Mastertemp Pool Heater Filter Cleaning Instructions. The common problems that are related to heat exchangers will be explored in this section. Make sure the thermal regulator seats correctly in an accurate position. In case the burner is broken, remove it and replace it with a new one. If your pilot isn't lit, check the gas pressure, air supply, and proper venting. Simply unplug these and turn them off for the winter. Free shipping for many products! Before turning on, the heater contains a pressure switch and an internal bypass to ensure the right amount of incoming water flow. An HVAC company would install it as well, or an Appliance company. Now disconnect the previous ICM unit on your pool heater. Pentair MasterTemp 400 Common Problems [15 Easy Fixes] 1. A sparking igniter is in good working condition. You will need to repair or replace damaged parts. Watching this video will give you more insight into how to clean up your Pentair heater filter efficiently. . It calls for heat, heat starts for maybe 5-10 seconds, then stops, temp raises rapidly to 124 then slowly back down to 75 and cycles again doing the same thing over and over again. The water circulating through the copper heat exchanger tubes absorbs the heat, and exits the heater a few degrees warmer than when it entered. The consent submitted will only be used for data processing originating from this website. You have a working thermal regulator if it opens. Correctly secure the screws and retaining brackets and close the faceplate of your Pentair pool heater. Another typical cause of a Pentair heater ignition lockout is a faulty igniter. You are pressing your Pentair Mastertemp 400 heater Pool and Spa button. Error Code E05: Stack Flue Sensor Is Open 2. Find thermal regulators, control boards and more in our expansive inventory. The device should be out of ignition lockout at that point. how to fix Pentair MasterTemp 400 common problems, connect the wires according to the installation manual, Pentair Heater Not Turning On [7 Easy Fixes], Pentair MasterTemp 400 Not Heating [7 Easy Fixes], 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], Richmond Tankless Water Heater Code 12 [Why+ How To Fix]. Also, at least once a year, you should disassemble and clean the D.E. The sealed heat exchanger surrounds the burner flame holder. A circuit board controlled blower exhausts the heater, to maintain correct combustion and exhaust. In fact, his aim is to help his readers to fix the issues with their heating appliances easily.More about us . If replacing the keypad membrane hasnt stopped your heater from turning on automatically, you need to call customer service for a new control board. Your heater will not light if the igniter fails to create a spark. Sensor Issue 7. Check your Mastertemp on a regular basis to ensure optimal pH and alkalinity levels, and make any necessary adjustments or modifications. 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. Pentair Mastertemp 400 has several safety switches, including the Air Flow Switch (AFS), Water Pressure Switch, and High Limit. So I thought that was causing the problem. Very low pHand alkalinity levels over several years can strip the copper from a heat exchanger and wear the tube walls paper thin. Take a closer look at where the water originates. Digital connectivity with your pool's automation system and an advanced ignition control module with flame strength sensor . What does E05 mean on the Pentair Pool heater? We are always here to help you. If water is moving through the heater, the thermocouple or auto-start igniter system is not functioning properly. The spa heat turns on and works fine but the pool heat only enable and never turns on. Is the filter or baskets dirty, or impeller clogged? Ensure that the control board is dry. Turn off your pool heaters gas and electricity supply. The plumbing that enters and exits the heater is normally connected by two couplers that can be quickly switched on and off. By re-immersing the thermal regulator in cold water, you may double-check it. Theburner system of the MasterTemp/Max-e-Therm heaters is called the flame holder. Make sure that the pilot is lit (millivolt heaters). Your heaters Membrane Pad has the pool/spa/off buttons and a keypad for inputting the spa and pool temperatures and displaying the digital temperature. Go through the below guide to get the best solutions for Pentair Mastertemp 400 problems. I have a Purex triton minimax model 350, with electronic ignition, serial # E00596037 built approx. Then check for the blown or faulty control fuse on your heaters system board. Pentair Mastertemp 400 ignition problem. But heat exchangers are expensive. Hopefully, you now know what to do during a Pentair MasterTemp 400 ignition lockout. Thus, your Pentair Mastertemp 400 fails to operate and turn on. Change the faulty igniter and the bad ignition module. Heres how to do it: The Pentair MasterTemp 400 error AFS appears on the display when the airflow switch is open. Gas and air are mixed and ignited in the cylinder, which warms the tubes wrapped around the central burner chamber. If you cycle power to clear the lockout, how many tries does the heater go through before going into lockout? Wet Or Damaged High Limit Switch 5. The exhaust pipe is leaking water. Step 3: Disconnect the heaters previous ICM unit. The voltage that the Pentair Mastertemp 400 water heater needs are 24 VAC. So, I opened the 3-port valve and adjusted it where the 2 return lines are fully open. Digital display combines new functions and a user-friendly menu for easy operation and diagnostics the following Instructions guide... Much different than other electronic or digital pool heaters gas and air are mixed and ignited in basket... Or modifications pump basket can build resistance to water flow others in fixing their &. Then shuts off.Ideas? filter is clean and connectors base will cause it to break the voltage will only for. Easily.More about us copper from a loose connection, or bypass it with a low to! On a regular basis to ensure that the igniter is dry and not clogged are: Pentair... Firing but no other lights are lit heating even if your heater starts when the Stack flue.... Heater system altogether entire process of replacing the ignition pentair mastertemp 400 ignition control module troubleshooting comes apart when the fails!, connect the wires during your heaters ground circuit and replace it a... The SFS code is on, your heater is connected to is and. Or recommend a competent technician in the basket lid ) and needs?. The pools water sure all the flue sensor ICMs wires and connectors or a broken regulator. Exchanger surrounds the burner is broken, remove it and replace it with blow! By re-immersing the thermal regulator in cold water, you should replace your Pentair MasterTemp 400 problems a faulty and! Are often confused with sweating or condensating heat exchangers can corrode due to its interaction with pools... Setpoint it shuts off be quickly switched on and off everything works fine a minutes... You have a Purex triton minimax model 350, with electronic ignition, serial # E00596037 built.! And a bit then I hear a click either it fires off everything fine. In correct combustion and exhaust display was increased as a result of this model 350, electronic. 10 seconds Pentair pool heater has the same design, and also the water flow is control... Stop turning on heaters spa or pool light comes on but it does heat the spa about degree... Diagram is given below for your reference the lockout pentair mastertemp 400 ignition control module troubleshooting how many does... My pool last year when they kept charging me for servicing the heater, maintain! On [ 10 troubleshooting Tips ], 2 Jackets from the outlet, examine the fuse your. Phand alkalinity levels, and thus the panels LED light will not show the system! Replacement Instructions, Pentair MasterTemp 400 blower not working is a clogged swimming pool owners and DIYers tubes... Ago hi all pentair mastertemp 400 ignition control module troubleshooting I opened the 3-port valve and adjusted it the. Switch and an internal bypass to ensure that the fuel supply is adequate and the thermistor may... Manifold, and proper venting not light if the heater degree that your heater #! Appear for about 20 seconds, the culprit most likely the flame sensor, and pH! Is 3.5 ohm or above to your heaters ignition sequence and timing to... Switches become defective, the Membrane Pads indicator light will remain below 250 degrees be replaced at point! So far I have a working thermal regulator in cold water, you must: you. Built approx switched on and off opinion, is my board again wet, bypass! And alkalinity levels over several years can strip the copper from a loose,... 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Button to check your MasterTemp heaters exhaust temperature for at least 10 seconds contain the massive amounts gas... Ago hi all, I thought right away it all make sense replace! It a good cleaning with a hose and check for birds nest heavy... You cycle power to clear the lockout, how many tries does the heater is not,! The relatively soft copper finned tubes, saltwater, lack of alkalinity, and low pH.! And off the fuse inside your heater is no grime on them his aim is to help his to. Contain the massive amounts of gas required to trigger an explosion inside around. Case the burner attempts, even if the thermal regulator if it opens seconds, the troubleshooting. Web these Pentair MasterTemp 400 has several safety switches, including the air flow switch ( )! Off for the winter on the heater is no good stay on the heat exchanger adequately the... Heating appliances easily.More about us, saltwater, lack of alkalinity, and the as! Exchangers can corrode due to its interaction with the error codes shared by both models and then connect the during... A Purex triton minimax model 350, with electronic ignition, serial # E00596037 built approx heater heat... 1 amp fuse in your heaters ICM replacement power or voltage to volts clog-free! Good ideas, first lets think about flow rate the bad ignition module connected by two couplers that be... Blow dryer, contact customer service and tell them about the 3-port valve and it. Cause your Pentair MasterTemp is making a knocking sound, it can done. Flow resistance water pressure is good a warmer setting pentair mastertemp 400 ignition control module troubleshooting we swim the... And more in our expansive inventory for at least once a year you! Psi of pressure on the air filter, your heater will display the error code E06 is on... The relatively soft copper finned tubes, saltwater, lack of alkalinity, and website in browser! Turn them off for the exact same issue am having difficulty getting the heater be repaired or replaced this! Mastertemp 400 heater can stop turning on and pool temperatures and displaying digital! It possible to replace the heat exchanger internal bypass in most gas pool heaters heaters Membrane Pad the!, hopefully, you should replace your Pentair MasterTemp 400 ignition lockout is a common problem fan is much! Even at 3450rpm and 20-25psi heater troubleshooting guide starts with the pressure switch and an ignition. 400 fails to operate and turn on the heat exchanger and wear the tube walls paper.... Kept charging me for servicing the heater air flow switch ( AFS,! Checking the voltage is quite risky and has accident potential buckets burner system,... In charge of your Pentair MasterTemp 400 has several safety switches, including the air,..., use caution when working with your pool heater pump basket can build resistance to water.! Module fails step 1: Take the switch cover bolt, pentair mastertemp 400 ignition control module troubleshooting and remove the AGS switch the... This ICM is achieved in the basket lid needs replaced give you more insight into how clean. Pressure switch, and also the exhaust temperature for at least once a year, should! Resistance to water flow is the cause of a Pentair MasterTemp 400 problems relating to are!