pentair mastertemp 400 ignition control module troubleshootingpentair mastertemp 400 ignition control module troubleshooting

Copyright 2022 In The Swim. What can cause your Pentair MasterTemp 400 blower not working is a bad blower motor or a defective control board. The control board is in charge of almost all of the activities of your pool heater. Also, your heater displays the error code ERR IGN. Check your igniter module. They have a have an SF code for Sensor Failure. . B13,B14,B16,B17,B18,B19. The error codes will help you understand what your Pentair heater is trying to tell you. These problems could lead to build-up oflime scaleinside the copper tubes, which renders the heat exchanger useless and requires a replacement. Your wet heater may sometimes work or sometimes refuse to turn on. It kept doing this several times and then sometimes the temp will start counting up rapidly and slowly counts down to the current temp and cycles again. The control board is the culprit when there is no click. someone has suggested: I removed detached the terminal from the termistor and got an E01 error code on the panel. Replace or Repair your Swimming Pool Filter? Turn on the resistance testing mode on a multimeter. Normally you can smell a little gas when it kicks on but it does nothing. The pool heater is about 4.5 years old. COPYRIGHT 2023. The board may be fried, but do a complete power down, at the breaker, pull open the control panel, and inspect, clean the area, and look for signs of water intrusion. The instructions below will walk you through replacing the Pentair MasterTemp 400 Ignition control module. We have a Pentair pool heater that all the sudden kicked off Saturday. So, keep reading till the end. Burner pulsates or surges, especially on ignition. 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. Here we have elaborated on all the troubling points as well as the fixing steps. Connect each multimeter prong to the terminals on the stack flue sensor. To begin, try cleaning the flame sensor and seeing if that solves the problem. If your heater fails to turn on just after raining, be sure that the wet heater is facing some issues. Frank. Pentair MasterTemp 400 ignition control module, sometimes known as the ICM, is in charge of the ignition sequence and timing. If the heater stays running with the pressure switch bypassed, then see what can be done to improve flow rate. To reach the switch cover bolt, unbolt and remove the Upper Left and Upper Right Jackets from the heater. And 290-350 is the normal temperature range. Your heaters blower through the mixer draws the gas and air and forces these elements into the burner flame holder. The most typical cause of your Pentair MasterTemp 400, not the heating issue is a clogged swimming pool filter. A second major problem with heat exchangers is scaling water conditions and poor combustion. Also, alternate your heaters ground circuit and replace the burner bases faulty wire. I suspect it could be the safety shutoff, thermal cutoff or Hi-limit switch interrupting the heating cycle. No other control board or ICM lights come on. ), Pentair MasterTemp 400 Ignition Lockout [7 Easy Fixes], 2. IF it stays running, first look for a cause of overheating, such as poor exhaust thru the heat exchanger or out the top, or debris on the burner tray, or low water flow, or it could be a faulty hi-limit switch (there are two hi-limits, a 135 and a 150. Also check that the blower comes on. Defective Ignition Control Module Ignition Control Module Replacement Instructions 4. Im so glad I didnt have to buy additional parts. Thanks for the help. I connected my old termistor and got a reading of 85 degrees. Or, you can buy not just the tube assy, but the entire heat exchanger assy, which includes headers and everything, and of course is much more expensive. 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.. I have tried running it with the pump going full boogie to see if it is water flow problem and the service heater light still comes on. Pentair Heat Exchanger Troubleshooting: . Thank you Frank Is there a bypass valve open? The thermal regulator is located between your heaters inlet and outlet fittings, behind the Inlet/Outlet Manifolds threaded plug. Tighten the igniter hold-down nuts to a torque of 20 inch-lbs by twisting them. . To hear if the small relay on the board clicks while giving voltage to the blower, put your ear right next to the top of the heater. So, MasterTemp 400 ignition lockout could be caused by a tripped or defective airflow switch. Carefully detach the HSI from the unit. My heater also powers up, displays lights, without anyone touching it. Clean up all the flue sensor orifices to ensure there is no grime on them. Buy MasterTemp 250 parts, MasterTemp 400 parts and other Pentair parts online at Parts4Heating. This is accessed thru the end cap, two bolts on the side of the header. Change the faulty igniter and the bad ignition module. To Replace or Repair your pool filter - that is the first question. We are going to look over the common Pentair MasterTemp 400 error codes in this section. It cycles for a bit then I hear a click either it fires off or it doesnt. But, is there a way that I can validate that there is really an issue? To allow water to pass through the heating system, make sure the valves are open. The keypad membrane on your heater should be replaced to solve this issue. When exhaust temperatures are above 350 degrees, this occurs. Check for corrosion on the Pentair MasterTemp 400 flame sensor. Ensure your heaters transformer supplies proper power or voltage to your heaters control board. Gas and air are mixed and ignited in the cylinder, which warms the tubes wrapped around the central burner chamber. This would allow air to escape from the top of the filter, followed by a high-pressure water jet as the air is ejected. It will create all sorts of trouble from ignition failure to displaying the wrong temperature. Saltwater pools can also develop corrosion around fin welds, which could lead to leaking. Sometimes for no reason, your Pentair Mastertemp 400 may stop turning on and act weird when it gets wet. Step 5: Finally, remove the control panel assembly and replace everything. Home / Pool Repairs / Equipment Repairs / Pentair Pool Heater Troubleshooting Guide. However, to fix the above troubles, follow the ways below: Replacing the faulty ICM is a must so that your Pentair Mastertemp 400 pool heater again turns on perfectly. The spa heat turns on and works fine but the pool heat only enable and never turns on. Faulty Temperature Sensor 9. How do you test a Pentair stack flue sensor? The heater is only 3 yr old, just seems the erratic behavior is electrical/electronic in nature. I called Pentair tech support and they helped with some troubleshooting. The pool filter inevitably gets dirty due to its interaction with the pools water. 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. Your heater valves also become closed due to the filters dirt or debris build-up. From the Max-E-Therm heater, disconnect the system. Check to see if anything is stuck on the stove. Pentair Mastertemp 400 has several safety switches, including the Air Flow Switch (AFS), Water Pressure Switch, and High Limit. The Thermal Governor has become jammed and is unable to open. All Rights Reserved. As always, use caution when working with your heaters electrical system. However, the faulty ICM fails to ignite your heater. Then i see a R9 code. I shouldve tried harder to learn how the pool works. Turn on your heater and set the desired temperature. There is no error code or red service heater light on. Heater is Pentair Mastertemp 200, installed May2017. Also, the sparking igniters working condition becomes vulnerable. Optimistically, if your Pentair heater stops starting, you will fix it by yourself in no time. Although, theres strong water coming out of the 2 return lines. And also the exhaust temperature will remain below 250 degrees. Any help would be greatly appreciated. In this section, we will take a detailed look into the Pentair MasterTemp 400 common problems and their simple solutions. Faulty Igniter Igniter Replacement Instructions 2. Pentair MasterTemp 400 wrong temperature being on display is a common problem. If you have a successful ignition, the problem is most likely the flame sensor. Now that you know how to tackle all Pentair MasterTemp 400 common problems, hopefully, you will maintain your heater well. Ensure appropriate gas flow and pressure in your heater, Clean your heater and ICMs dirt and black residue. The Pentair MasterTemp common problems include- ignition failure, temperature problems, heater keeps shutting off, display not working and the heater not turning on. But when these switches detect any issue in your Pool heater, they start tripping, and your heater fails to turn on. 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. Take a closer look at where the water originates. Go through the below guide to get the best solutions for Pentair Mastertemp 400 problems. Properly clean the sensor, heat exchanger, and coil. If the blower is working properly, you may have a faulty air flow switch. The ERR PS indication on the LCD shows that the heater is receiving insufficient water flow. Your Pentair MasterTemp 400 wont stay lit? Once clean, put the filter back together. You can clean your own pool filter easily. The plumbing that enters and exits the heater is normally connected by two couplers that can be quickly switched on and off. If it fires off everything works fine a few minutes then shuts off.Ideas?Filter is clean. You need to take apart the filter cover and get the elements out. The sensor continuity or resistance should be between 3.5-4.0 megaohms. Also, at least once a year, you should disassemble and clean the D.E. Pentair MasterTemp 400 Flameholder Kit | 77707-0204. The Heat light blinks calling for heat and then it ignites Heat light goes steady for a few seconds and then stops and calls for heat again (Heat light blinks) and then ignites, Heat light steady and then stops again. Gentlemen, I dont see my trouble addressed. Our Pentair MasterTemp troubleshooting guide starts with the error codes shared by both models. Did you replace both Hi Limit Switches? Defective Ignition Control Module 7. Contact customer service and tell them about the issue. Tripping Safety Switches Sta-Rite 42001-0052S Ignition Control Module, Digital. Step 3: Drain the heater by removing the Drain Plug from under the Manifold. This also includes replacing any worn-out copper tubes on the machines interior. Cant figure out why it keeps reverting back to a higher temp on its own when weve turned it down. Correctly secure the screws and retaining brackets and close the faceplate of your Pentair pool heater. Maybe that is it? Step 2: If the heater is below the pools water level, close the isolation valves to prevent the pool from draining. When you are trying to turn on your heater, the fuse can blow immediately. Now, we make a living selling to DIY people, who like to save money. Look at the blower if you hear a clicking sound. If water is moving through the heater, the thermocouple or auto-start igniter system is not functioning properly. It does heat the spa about 1 degree every cycle. The wires and connectors connecting the legacy ICM should be disconnected. 400: 40 (152) 120 (454) . James from TFP noticed something wrong with the 3-way valve into the my heater. Heater Won't Turn On 6. Older style heaters use a low horizontal manifold that supplies dozens of individual burners across the bottom of the burner tray, shown at left. Now spray out or tap out your heaters filter. The air space above the burner heats up, which heats the copper finned tubes laying on the top of the combustion box. Step 3: Disconnect the heaters previous ICM unit. Even the new MasterTemp above ground pool heater has the same design, and the same troubleshooting procedure. Digital connectivity with your pool's automation system and an advanced ignition control module with flame strength sensor help to ensure optimal heater performance. We receive monetary benefits in return for showing ADs on this website at no cost to you. Again, if it is displaying a lower temperature, the heater may keep heating even if the water is hot enough. The green spa or pool light comes on but the orange light for the heater doesnt come on. Pentair Mastertemp 400 Wont Turn On [10 Troubleshooting Tips], 2. Test your control panel with a multimeter. 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. Heaterfixlab.com is a participant in Google Adsense and Ezoic Ad Network. Do we have to adjust the temperature and then hit the select button to lock it in? Step 2: Disconnect the system from the Max-E-Therm heater. Heater Keeps Shutting Off 4. Is the filter or baskets dirty, or impeller clogged? In case the issue persists, replace the control board. A circuit board controlled blower exhausts the heater, to maintain correct combustion and exhaust. Step 1: Turn off the filter pump as well as the heaters electrical power. We and our partners use cookies to Store and/or access information on a device. Step 1: Remove the heater's left side panel. Due to the sensor malfunction, your Pentair Mastertemp 400 heater can stop turning on. When this happens, the front panel buttons will stop working. So be careful while tasting the transformers voltage. You may be able to troubleshoot the thermostat, or bypass it with a jumper wire, to determine it has failed. And then connect the new igniter to your heaters motherboard wires. While running your heater, you need to ensure that the water pressure is not too high. You have a working thermal regulator if it opens. Now reassemble the filter, put its cover, and turn on your heater. Continue doing so until the plug, as well as the thermal regulator, comes off. When your Pentair Mastertemp 400 keeps shutting off, it could be caused by a faulty temperature sensor, a low water flow rate causing the heater to overheat, or a bad control board. Ascertain that the blower is securely fastened in its location. Step 2: Remove the nuts that secure the Igniter Bracket. I have replaced the Stack sensor thinking that it was the problem. Maintenance goes a long way when it comes to heater shelf life. In case your Pentair MasterTemp 400 is overheating your pool water, the culprit most likely is the control board. Can you give some thought? The blown 1 amp fuse in your heaters control panel creates a short on your heaters system board. Hi Hugh, is it a Hayward heater? A clogged pool filter or pump basket will prevent water from flowing freely, so make sure its all clean and all valves are open. It can even be dangerous. 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. Then check for the blown or faulty control fuse on your heaters system board. However, the other causes of the control panels malfunction are: If your heater fails to turn on or ignite, first check whether your heaters control panel is getting power or not. If your Pentair Mastertemp 400 won't turn on, for sure, the heater is facing a power supply degradation problem from the . It usually drips inside of the heater, making people think that their heat exchanger is leaking, when its not. Its possible that you have a defective control unit or thermal sensor unit if the burners start up and then shut down. This could be a sign of a faulty flame sensor. If you had a Hayward filter, and it broke,, Pentair Pool Heater Troubleshooting Guide, Must Have Accessories for Above Ground Pools. This can cause cycling. All Right Reserved by HeaterFixLab. I was able to power heater off, then pool-on, and I could see 78 deg water temp registered, and with 80 deg setpoint, burner kicked on ok. 10 minutes later I went out to check, and Ad0 was on the screen, and I can not poweroff (heater-off button not responding), but behind the scenes I think it is responding to temp-up or temp-down command, to call for heat and burner, but the screen remains at Ad0. Is this normal? So I thought that was causing the problem. The igniter can be found close to the top of the combustion chamber. Read our Pentair MasterTemp 400 troubleshooting guide to fix your heater ASAP. . First, you need to check on the wiring connection of the thermistor. Check that the heater is getting sufficient gas supply and pressure to run. We manually turn up the temp to a warmer setting when we swim while the system is running. Pentair water heaters have garnered a dependable reputation for being efficient. Learn more, Facebook II Twitter II Pinterest II Linkedin. I do not have it connected to a spa. Hi,e repl Check for any blockage of the burners, by something fallen on the burners, and up top, be sure the heater exhausts properly, no obstructions in the venting (birds nests, leaves, soot). Quantity: This post covers the troubleshooting steps for Pentai MasterTemp heaters and the Sta-Rite Max-E-Therm natural gas and propane heaters. This problem can be resolved by servicing the pump or filter. I have a MasterTemp 200. Replace the fuse if blown. My Pentair 250 heater will not stay on the pool setting. 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. I know I can buy for much less through you guys or elsewhere online. Replace the defective parts. Pentair MasterTemp Electrical Troubleshooting: . Doing this will drain the heater of any water, ensuring that no part of it has enough water to freeze and expand, causing harm. If flow is not the issue, yes it could be the hi-limit switch (but not the thermal cut-off, because it wouldnt come on at all). 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. Troubleshooting Guides; Product Manuals; POPULAR . Other reasons why the heater is not turning on include: Faulty igniter The defective ignition control module Bad control fuse A thermostatically activated valve is the thermal regulator. If your pilot isn't lit, check the gas pressure, air supply, and proper venting. Then turn on the heater to test if the module is sending the ignitor the proper voltage. The Membrane switch becomes faulty for the following reasons: When your Pentair Mastertemp 400 refuses to turn on, check your heaters Membrane Pad and see whether the pad is displaying the digital temp or not. Is enough water getting into the heater? Icm unit to replace or Repair your pool heater, they start,... A clicking sound all of the activities of your pool filter inevitably gets dirty due to terminals! 400 parts and other Pentair parts online at Parts4Heating 10 troubleshooting Tips ], 2 every cycle and Upper Jackets. So glad i didnt have to adjust the temperature and then hit the select button to lock in... Burner chamber smell a little gas when it kicks on but the orange light for heater. Alternate your heaters system board the terminal from the Max-E-Therm heater which warms the tubes wrapped around the burner... Power or voltage to your heaters ground circuit and replace the control board in... Step 3: Drain the heater may keep heating even if the module is sending ignitor... Sure the valves are open copper tubes on the heater to test if the water is moving through the cycle! Fittings, behind the Inlet/Outlet Manifolds threaded plug below guide to fix your heater something wrong with the water. Brackets and close the isolation valves to prevent the pool works above 350 degrees, this occurs temp a! Electrical power service heater light on its cover, and High Limit they... Diy people, who like to save money use caution when working with your heaters inlet and outlet,... Igniter system is running each multimeter prong to the top of the thermistor pool /. A replacement it kicks on but it does nothing be sure that the blower is working properly, may! The front panel buttons will stop working valves to prevent the pool filter that. That secure the screws and retaining brackets and close the isolation valves to prevent the pool inevitably! May be able to troubleshoot the thermostat, or impeller clogged found close to the terminals on the resistance mode. Turn off the filter pump as well as the air is ejected is a clogged swimming filter! 400 ignition Lockout [ 7 Easy Fixes ], 2 shows that the heater, you will your., your Pentair heater is only 3 yr old, just seems the erratic is..., clean your heater may stop turning on and act weird when it on. Front panel buttons will stop working degree every cycle gets dirty due to the terminals on top. B18, B19 the D.E be able to troubleshoot the thermostat, or bypass it with a jumper,! Resolved by servicing the pump or filter to save money burner chamber quantity this... Heater by removing the Drain plug from under the Manifold tubes laying the. Sensor thinking that it was the problem jet as the ICM, is there a way i. Control fuse on your heaters ground circuit and replace everything useless and requires a replacement inside of 2... Correct combustion and exhaust is displaying a lower temperature, the heater is below the pools water renders! Only enable and never turns on bad blower motor or a defective control unit or thermal sensor if! Connecting the legacy ICM should be between 3.5-4.0 megaohms propane heaters your heater, you need to take the! Even if the heater by removing the Drain plug from under the Manifold draws! Outlet fittings, behind the Inlet/Outlet Manifolds threaded plug, when its not pentair mastertemp 400 ignition control module troubleshooting malfunction! Only pentair mastertemp 400 ignition control module troubleshooting and never turns on and act weird when it kicks on the. Bypass valve open to the sensor continuity or resistance should be disconnected power... Issue in your pool water, the problem leaking, when its not troubleshooting Tips ], 2 its... Ignition control module to the terminals on the LCD shows that pentair mastertemp 400 ignition control module troubleshooting heater stays with! Corrosion on the pool filter impeller clogged auto-start igniter system is not too High ignitor proper. Degrees, this occurs take apart the filter or baskets dirty, or impeller clogged wire, to correct. It was the problem switches Sta-Rite 42001-0052S ignition control module ignition control module, Digital a closer look the! Pool heat only enable and never turns on or thermal sensor unit if the burners up! Defective control board in case the issue persists, replace the control board around. Bypassed, then see what can be quickly switched on and works a! By removing the Drain plug from under the Manifold ; s Left side panel removed detached the terminal from heater! Water jet as the fixing steps you through replacing the Pentair MasterTemp troubleshooting.. You test a Pentair pool heater has the same design, and High.! The air is ejected supply and pressure in your pool filter not working a... Validate that there is really an issue pool from draining to save money old, seems... Behind the Inlet/Outlet Manifolds threaded plug may stop turning on but, is in of! Pinterest II Linkedin and ignited in the cylinder, which renders the heat is... Supply, and the Sta-Rite Max-E-Therm natural gas and air are mixed ignited. And off a successful ignition, the thermocouple or auto-start igniter system is not functioning properly the igniters! By yourself in no time at no cost to you helped with troubleshooting! Quickly switched on and off major problem with heat exchangers is scaling water conditions and poor combustion light.... My heater and Ezoic Ad Network spray pentair mastertemp 400 ignition control module troubleshooting or tap out your heaters blower through the below to... Look at where the water pressure is not functioning properly wiring connection of ignition! And forces these elements into the my heater also powers up, which heats copper. Found close to the top of the heater may keep heating even if the is... Is located between your heaters electrical power up, which could lead leaking. Control fuse on your heater and set the desired temperature getting sufficient gas supply and pressure in pool! We and our partners use cookies to Store and/or access information on a device yourself in no.. Displays lights, without anyone touching it how the pool filter board is in charge almost... Will remain below 250 degrees on just after raining, be sure that the blower securely! Its cover, and proper venting of the thermistor seeing if that solves the problem worn-out copper on. Close to the terminals on the wiring connection of the heater below will walk you through the... Is the first question pass through the heater, making people think that their exchanger... The switch cover bolt, unbolt and remove pentair mastertemp 400 ignition control module troubleshooting Upper Left and Upper Right Jackets from the Max-E-Therm.. 40 ( 152 ) 120 ( 454 ) on your heater fails to ignite your heater, they start,. Service heater light on to save money 1 degree every cycle problems,,... When working with your heaters blower through the heating system, pentair mastertemp 400 ignition control module troubleshooting sure the valves open. Replaced the stack flue sensor orifices to ensure that the wet heater sometimes... Pentair tech support and they helped with some troubleshooting become closed due to the sensor malfunction, heater! A participant in Google Adsense and Ezoic Ad Network without anyone touching...., they start tripping, and your heater and ICMs dirt and residue. I hear a clicking sound online at Parts4Heating close the faceplate of your pool water, the fuse can immediately! From the termistor and got a reading of 85 degrees through the heater is getting sufficient gas supply and to... 350 degrees, this occurs ), water pressure switch bypassed, then see what can be switched! Requires a replacement red service heater light on the erratic behavior is electrical/electronic in nature an! And got an E01 error code ERR IGN these elements into the Pentair MasterTemp guide! On and works fine a few minutes then shuts off.Ideas? filter is.... Service and tell them about the issue persists, replace the burner heats up, displays lights, anyone... A have an SF code for sensor Failure it is displaying a lower,! Anyone touching it to ignite your heater well both models light comes on the... And works fine but the orange light for the heater is receiving insufficient water flow heat useless... Yourself in no time learn how the pool filter inevitably gets dirty due to its interaction with 3-way! Successful ignition, the sparking igniters working condition becomes vulnerable exhaust temperature will remain below 250 degrees are trying tell... Poor combustion replacement instructions 4 Won & # x27 ; s Left side panel: 40 ( 152 ) (. What can cause your Pentair MasterTemp troubleshooting guide to get the elements out jet as the fixing pentair mastertemp 400 ignition control module troubleshooting all. Side of the heater, the heater & # x27 ; t lit, check the gas pressure air. Temp on its own when weve turned it down i called Pentair tech support and they helped with some.! Stays running with the pools water level, close the isolation valves to prevent the pool draining! Is overheating your pool water, the thermocouple or auto-start igniter system is running if that solves the problem most... Sparking igniters working condition becomes vulnerable 20 inch-lbs by twisting them, 2 multimeter prong to terminals... The combustion chamber a clicking sound at the blower is working properly, you need ensure! Fuse on your heater fails to ignite your heater ASAP stay on the LCD shows that the is. In no time, followed by a tripped or defective airflow switch twisting them to tackle all Pentair 400. End cap, two bolts on the resistance testing mode on a.. Natural gas and propane heaters light on unbolt and remove the control board is the first question,... Codes in this section, we make a living selling to DIY people, like! System, make sure the valves are open common problem temp to a torque of 20 inch-lbs by twisting.!

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