We manually turn up the temp to a warmer setting when we swim while the system is running. The consent submitted will only be used for data processing originating from this website. Follow this video below for instructions on Pentair MasterTemp 400 control board replacement. When I ask for heat, the service system and service heater lights briefly light up red then turn off. Besides, the heater turning on automatically, the flame wont stay lit, the blower not working, low water flows, error codes, a defective control panel, dirty filter, noise, freeze damage, and heat exchanger problems can trouble you while using Pentair MasterTemp. Test your control board with a multimeter. Due to the sensor malfunction, your Pentair Mastertemp 400 heater can stop turning on. The instructions below will walk you through replacing the Pentair MasterTemp 400 Ignition control module. Using a multimeter, check the voltage measurement on the pressure switch. By unlocking the manual relief valve on top of the Clean & Clear Plus filter, I would bleed air out of it. Reduce strength of exhaust vent and/or number of elbows. These problems could lead to build-up oflime scaleinside the copper tubes, which renders the heat exchanger useless and requires a replacement. Articles and resources for swimming pool owners and DIYers. Replace or Repair your Swimming Pool Filter? And 290-350 is the normal temperature range. While running your heater, you need to ensure that the water pressure is not too high. Low water flow is the cause of up to 70% of all My heater wont heat service calls. You need to identify and solve the underlying cause of this issue before resetting the heater. Make sure the thermal regulator seats correctly in an accurate position. Step 2: Disconnect the system from the Max-E-Therm heater. Step 1: Take off the left side panel of the heater. Curt could be a short in the thermostat wire, or the thermostat could be going back, check the wire connections for rust/corrosion. 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. In case there is blockage in the heat exchanger, how do I fix that? I replaced the HLS twice to no avail. Change the faulty igniter and the bad ignition module. He thought that with time, it dried out, thus returning to normal predictable function. When you say the exhaust pipe, I guess you mean the pipe carrying water out of the heater, or leaking on the front manifold? All Right Reserved by HeaterFixLab. Also, the gas valve gets low-voltage power from this ICM. Also could possibly have circuit board problems. And the exchanger out of the flue discharges the exhaust gas. The control board is in charge of almost all of the activities of your pool heater. Replace with new igniter. 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. This issue should be checked ASAP. Check your igniter module. Thus, your Pentair heater wont work and displays the error code SFS (Stuck Flue Sensor), and the exhaust stays cold. Thank you! If the heater stays running with the pressure switch bypassed, then see what can be done to improve flow rate. 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. Continue doing so until the plug, as well as the thermal regulator, comes off. Malfunctioning Blower 9. Sensor Issue 7. Our Pentair pool heater troubleshooting guide will have your heater back in business in no time. However, along with the improper installation, the faulty ground circuit and lousy wire from the burner base disturb the burner flame holders functioning. The ignitor is connected to the Molex connector with wires. Otherwise, your control board is most likely to be blamed. A circuit board controlled blower exhausts the heater, to maintain correct combustion and exhaust. Is it possible to replace the heat exchanger or do I need to replace the entire heater system altogether. My Pentair 250 heater will not stay on the pool setting. It is old and a bit rusty and loud. They have a have an SF code for Sensor Failure. This item Pentair 460783 Ignition Control Module Replacement Kit MiniMax NT Pool and Spa Heater Pentair 472447 Digital Module Ignition Control Replacement MiniMax Pool and Spa Heater Swimables 42001-0063S High Limit Switch for All Pentair Mastertemp and Starite Pool Heater - Compatible with All Sta Rite and Pentair Pool Heater Parts Replace the defective parts. Heater is Pentair Mastertemp 200, installed May2017. Be sure the heater is turned off at the breaker, and youre wearing proper protective gear. Check your Mastertemp on a regular basis to ensure optimal pH and alkalinity levels, and make any necessary adjustments or modifications. Step 5: Turn on the Combustion Air Blower and check for leaks with a soapy water solution. Replace everything in its proper location. I only found 1 small stone stuck inside where the bypass is. Comment and let us know whether you succeed in solving your heaters issue or not. 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. After a minute of starting a Pentair heater, optimum airflow is achieved in the system. You are pressing your Pentair Mastertemp 400 heater Pool and Spa button. The control board is the culprit when there is no click. The breaker is tripped as a result of this. Alerts pushed to a smart device to keep you updated on heater performance and real-time status. A sparking igniter is in good working condition. How much does an ignition control module cost? Also, the other responsible factors are the wet heater, sensor problem, faulty membrane switch, tripping safety switches, and no power on the heaters control board. Faulty Igniter Igniter Replacement Instructions 2. Your Pentair Pool heater displays the E05 due to the low water flow, sooted fuel delivery or venting exchanger, and waterside scaled-up exchanger. Then it came back on without my doing, switched to spa mode and commanded 110F setpoint. Flame Won't Stay Lit 8. how to fix Pentair heater error codes problems. All you have to do now is double-check the burner. Some filters need back-washing. The next day I powered pool-on and it registered the correct water temp. The Pool company said that it is probably condensation. ), Pentair MasterTemp 400 Ignition Lockout [7 Easy Fixes], 2. 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 Thermal Governor has become jammed and is unable to open. Check the pumps strainer basket if the filter has been cleaned and the PSI is not high. Continue with Recommended Cookies. Replaced the thermistor probe, not the problem, not getting an error code, if I keep running, the heater ignites again and again turns off? Malfunctioning Ignition Control Module. If your Pentair Mastertemp 400 won't turn on, for sure, the heater is facing a power supply degradation problem from the . Combustion appears normal, but the flame does not stay lit. Ensure that the pool filter is clean and clog-free. If the Fenwal light is flashing 3 times indicating a lockout, that indicates that the Fenwal ignition control module is not reading a flame current signal. The same is true for the StaRite Maxetherm heaters. Pentair 77707-0001 Manifold Bypass Valve . When your heater is displaying a higher temperature, the heater wont fire and heat the pool as it should. To resolve this error number, ensure the fan is not obstructing airflow. I let it run and the temp slowly went up from 74 to 77 in just an hour without stopping. ******************************************************** To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. Ensure that the burner flame holder is grounded properly. Accommodates: All MasterTemp 175/200/250/300400NA, MasterTemp 400LP, MasterTemp 400 ASME and MaterTemp 400 HD Model Heaters. Water running out from the heater could also verify, however there are other things inside the heater that can leak water. 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! In case you have any queries regarding your Pentair MasterTemp 400, leave us a comment. These Pentair MasterTemp 400 Problems relating to temperature are explored below. Step 4: Insert the new ICM into the Junction Box chamber of the heater. It fires up fine, but about 15 minutes into heating the service heater light comes on and I am unable to turn it off with the power button and I have to unplug it to reset it. Any suggestions? Dirty Filters 12. After the gas valve opens, the HSI will switch to a sensing mode to monitor the flame. Faulty thermal regulator or thermal regulator seats incorrectly, Incorrect fuel supply pressure and volume, Replace the corroded or faulty sensor, defective thermal regulator, the sensors bad connections, malfunctioning heat exchanger, coil. 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. More about us. You must also restore the Igniter Gasket when repairing the HSI. I have a Pentair MasterTemp that I have been trying to troubleshoot for a year now. When exhaust temperatures are above 350 degrees, this occurs. Defective Ignition Control Module Ignition Control Module Replacement Instructions 4. Now reassemble the filter, put its cover, and turn on your heater. The flame ignitor is firing but no gas flow. So stay tuned. The control panels faulty circuit breaker causes no power in it, and thus the panels LED light will remain off. Heater will not turn off and a 5F code with a flashing 1. Dont stress! Bypass the flame sensor to determine if the pool warmer will fire without it. The solution to your heater issue is given in your previous comment. However, the faulty ICM fails to ignite your heater. Copyright 2022 In The Swim. Boiling in the heat exchanger can occur for a number of reasons. 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. If the resistance is zero, the stack flue sensor needs to be replaced. How do you test a Pentair stack flue sensor? Check to see if anything is stuck on the stove. Your Pentair MasterTemp 400 wont stay lit? Heater Turns On Automatically 7. Step 2: Remove the nuts that secure the Igniter Bracket. Turn off your pool heaters gas and electricity supply. All Right Reserved by HeaterFixLab. Optimistically, if your Pentair heater stops starting, you will fix it by yourself in no time. 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. If your Pentair MasterTemp is making a knocking sound, it can be because of a faulty manifold bypass or a broken temperature regulator. Test your control panel with a multimeter. Hello, I have a Pentair Mastertemp 400 that starts heating the spa but then shuts off and on every few minutes. So I heed the advise although the flapper in the check valve still doesnt open completely, the heater started working again. The spa heat turns on and works fine but the pool heat only enable and never turns on. Saltwater pools can also develop corrosion around fin welds, which could lead to leaking. The following instructions will guide you through the entire process of replacing the Ignition Control Module, ICM of your Pentair MasterTemp 400. Verify your heaters burner flame holders installation and make sure it is properly grounded. You will need to repair or replace damaged parts. The thermal regulator is located between your heaters inlet and outlet fittings, behind the Inlet/Outlet Manifolds threaded plug. I dont see my trouble addressed. SFS is stack flue sensor. 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 wrong temperature being on display is a common problem. The thermal regulator should be in fine working condition. Pentair Mastertemp 400 error code E01 means that the water temperature sensor is open. The automatic gas shutoff or AGS switch is another safety feature of your Pentair heater. Web product owners manuals are available for nearly every product to help you and your pool professional install and service your pool and spa equipment and . Please help. Can you give some thought? Also, disconnect the legacy ICMs wires and connectors. You can clean your own pool filter easily. Leaking heat exchangers are often confused with sweating or condensating heat exchangers. The time it takes a heat pump to heat a pool is determined by a few factors. When the heater tries but fails to start, it recycles. http://www.haywardnet.com/pdfs/uhs-heater-troubleshooting-guide.pdf. I think I am commanding only a 1 deg increase in temp, so although I can not see anything but Ad0 I will wait and see if the burner cycles down as the water temp warms the 1 deg or so. Contact customer service and tell them about the issue. In case the burner is broken, remove it and replace it with a new one. Your wet heater may sometimes work or sometimes refuse to turn on. It continuously bounces between pool and spa. The following are some of these issues and their solutions: These are the possible solutions for this issue. If its unclean, give it a good cleaning with a hose and check for fractures in the basket lid. Defective Control Panel 11. And thus your heater will stop starting. Bad Control Board FAQs: in 1995. Your heater valves also become closed due to the filters dirt or debris build-up. And then replace the fuse or the entire system board. You need to follow the instructions given below to replace the AGS switch. Take off your Pentair pool heaters left side panel. Otherwise, the igniter is bad and you need to replace it. It is a sfs code, but with no e05 error code. I also noticed that the flap wasnt opening even at 3450rpm and 20-25psi. like it is having trouble exhausting, check for birds nest or heavy spiderwebs or leaves on the heat exchanger. someone has suggested: I removed detached the terminal from the termistor and got an E01 error code on the panel. If not, replace it. The sealed heat exchanger surrounds the burner flame holder. Replace in case necessary. The most typical cause of your Pentair MasterTemp 400, not the heating issue is a clogged swimming pool filter. The typical cost of replacing an ignition control module is $292-$398. Free shipping for many products! The pump basket blockage or clogged filter causes water flow resistance. It means that the ignition control module has failed to ignite the heater. It could also be just general humidity, and a very moist/humid area, not so good for circuitry. What can cause your Pentair MasterTemp 400 blower not working is a bad blower motor or a defective control board. If your pool filter has been struggling the last, Spring is here and summer is right around the corner. Thank you Frank we have a Pentair mastertemp 400K; We just had it installed last fall. If it does, you may have received a defective regulator in need of a replacement. Thoughts? This problem can only be solved by replacing the ICM. Pentair Heat Exchanger Troubleshooting: . I tried removing spring on the flap and run the heater, the flap was opening in full, but heater was still giving me the same issue so I re-inserted the string back. So, now you have a crystal clear idea of why your Pentair Mastertemp 400 wont turn on. You can try replacing the control board yourself in case you have some electrical knowledge. To fix your heaters control panels hitch, do the following: Note: Checking the voltage is quite risky and has accident potential. I called Pentair tech support and they helped with some troubleshooting. Remove the Max-E-Therm Heater from the equation. Get a new igniter, the same as the previous igniters part number. Display Not Working 5. The leak can be verified by you, if you lift the lid and inspect inside. You may safeguard your equipment from seawater erosion by using cupro-nickel. The ignition system comes apart when the module fails. Cant figure out why it keeps reverting back to a higher temp on its own when weve turned it down. My heater also powers up, displays lights, without anyone touching it. The pool system must sustain the water flow in order for heaters to perform efficiently. Sometimes for no reason, your Pentair Mastertemp 400 may stop turning on and act weird when it gets wet. In short the system keeps automatically turning the temp up on its own. There are two. Then replace the faulty ICM. I know I can buy for much less through you guys or elsewhere online. Wet Or Damaged High Limit Switch 5. We are always here to help you. When I hold it, the temp slowly went up to 90. All of this must be considered when deciding whether to fix the heater by changing the exchanger or replacing the entire heater. In case the wiring is good, you probably have a thermistor that needs replacing. The plumbing that enters and exits the heater is normally connected by two couplers that can be quickly switched on and off. Pentair MasterTemp 400 customer care can provide you with a replacement control board. If your heater fails to turn on just after raining, be sure that the wet heater is facing some issues. Wet Heater 6. Pentair MasterTemp 400 Common Problems [15 Easy Fixes]. Note: when the opened the manifold last winter to replace the bypass, the manifold and the heat coils have no signs of scales. A pool technician replaced 3 sensors however it still does not work. Now spray out or tap out your heaters filter. Ensure that the control board is dry. Pentair Mastertemp 400 Heater Not Turning On. We recommend you dont try to perform repairs that you dont feel confident attempting. What does a high-limit switch do on a pool heater? Now, we make a living selling to DIY people, who like to save money. Error Code E06: Stack Flue Sensor Is Shorted 3. Noise 13. Beyond that, look thru this troubleshooting guide and consult your pool heater owners manual, as I cannot troubleshoot your heater from here. We activate both functions from a Jandy control inside the home Theres no code on the machine outside to indicate possible problems. To Replace or Repair your pool filter - that is the first question. Might charge under $500 to install. Clogged Pool Filter 8. The Service Heater light comes on when the heat shuts off, seems to reset after a minute or so, then the Service Heater light turns off and the spa starts heating again. Maintenance goes a long way when it comes to heater shelf life. I have a Pentair Master Temp 300 Pool Heater that is 6 years old. . An example of data being processed may be a unique identifier stored in a cookie. Do we have to adjust the temperature and then hit the select button to lock it in? When it used to work I would hear a big kaboom sound and now nothing. Troubleshooting the stacked exchanger type of heater is not much different than other electronic or digital pool heaters. Ensure that the power outlet your Pentair heater is connected to is good and provides the appropriate amperage for the heater. We have a new Pentair Mastertemp 400. If your pilot isn't lit, check the gas pressure, air supply, and proper venting. Make sure the blower is running properly and nothing is impeding the airflow to reset the AFS. Low Water Flow 10. The LED on the back panel indicated HLS. The blown 1 amp fuse in your heaters control panel creates a short on your heaters system board. Learn more about pool care and repair. Also, at least once a year, you should disassemble and clean the D.E. It can even be dangerous. Size: 1- (Pack) 1- (Pack) 2- (Pack) 3- (Pack) 4- (Pack) 5- (Pack) Ensure appropriate gas flow and pressure in your heater, Clean your heater and ICMs dirt and black residue. B13,B14,B16,B17,B18,B19. William is the founder of Fireplacehubs.com. It makes a clicking noise from the Ignition Control Module while at the same time, the HLS light briefly blinks and goes away. Error Code E05: Stack Flue Sensor Is Open 2. . When problem started happening last early last year, one of the thing I did was replaced a broken Jandy check valve between the heater and chlorinator. To get to the burner inside the heater, open it up. The ignition control then outputs 24V to the Operating control ( Val to Val ) and through the safeties (Ags and Stack Flue Sensor to the gas valve). #476223 Pentair MasterTemp 400 Pool Heater, Ignition Module. Then checks the continuity across the sensor. Thanks for the help. Pentair Mastertemp 400 ignition problem. Gas and air are mixed and ignited in the cylinder, which warms the tubes wrapped around the central burner chamber. When I fire up the heater on Pool it begins to heat but after about 5-10 minutes it moves over to Spa Heat (which I dont have a spa) and shuts down the heater. And again, I always thought that when something big happened, I would have to get it replaced. Heater Won't Turn On 6. Digital connectivity with your pool's automation system and an advanced ignition control module with flame strength sensor . In case your heating system is clean and free from loose debris, it is most likely the manifold bypass. Heater keeps trying to ignite in the same manor for the next 10-20 minutes before it will finally get a service system light. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. The device should be out of ignition lockout at that point. It should be replaced. Remove and adequately clean the filters remaining large debris. Hello Make sure the pilot tube is intact and not clogged. Kindly help. And then connect the new igniter to your heaters motherboard wires. Pentair water heaters have garnered a dependable reputation for being efficient. 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Has failed to ignite in the thermostat could be going back, the! Data for Personalised ads and content measurement, audience insights and product development issue before resetting the,... Result of this must be considered when deciding whether to fix Pentair heater error codes.! We swim while the system from the termistor and got an E01 code... Pentair water heaters have garnered a dependable reputation for being efficient 400 wont turn on 6 there.