pentair mastertemp 400 ignition control module troubleshooting

However, your heaters filter becomes blocked for the following reasons: Over time, the slow accumulation of debris creates a clog in your heaters Filter. Check for corrosion on the Pentair MasterTemp 400 flame sensor. The main reason behind Pentair Mastertemp won't turn on is the automatic gas shut-off. Step 5: Take the new AGS switch and reverse steps 1 through 4 to replace it. Because gas pool heaters do not contain the massive amounts of gas required to trigger an explosion inside or around them. Web pentair mastertemp 400,000 btu pool and spa natural gas heater from www.primepoolmarket.com. If your control board is broken, you must replace it. Installing a pool heater is not simple, but is done DIY all the time. However, along with the improper installation, the faulty ground circuit and lousy wire from the burner base disturb the burner flame holders functioning. Pentair Mastertemp 400 Won't Turn On [10 Troubleshooting Tips] 1. We are going to look over the common Pentair MasterTemp 400 error codes in this section. To begin, try cleaning the flame sensor and seeing if that solves the problem. Replace ignition or control module. Flame Won't Stay Lit 8. Reduce strength of exhaust vent and/or number of elbows. Thanks for the help. If the blower is working properly, you may have a faulty air flow switch. In about 20 seconds, the gas valve opens and ignition should occur. Although, theres strong water coming out of the 2 return lines. The blower needs to be repaired or replaced in this situation. Of course, there is also an internal bypass in most gas pool heaters. Check for wet or damaged igniter with low resistance to ground. Ensure that the control board is dry. Still have the power light lit but no other lights are lit. Hello, I have a Mastertemp 200. Ascertain that the blower is securely fastened in its location. 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. $354.18. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. Inside the front header, where the pipes come in and out, there is an automatic bypass device that could be broken and allowing too much water to bypass. This issue should be checked ASAP. In case your Pentair MasterTemp 400 is overheating your pool water, the culprit most likely is the control 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. Make sure the pilot tube is intact and not clogged. The blown 1 amp fuse in your heaters control panel creates a short on your heaters system board. The ignition system comes apart when the module fails. Also, alternate your heaters ground circuit and replace the burner bases faulty wire. Replace the fuse if blown. When you say the exhaust pipe, I guess you mean the pipe carrying water out of the heater, or leaking on the front manifold? Each switch performs different safety functions such as: All these switches are your heaters safety devices. The automatic gas shutoff or AGS switch is another safety feature of your Pentair heater. The Service Heater light comes on when the heat shuts . If you had a Hayward filter, and it broke,, Pentair Pool Heater Troubleshooting Guide, Must Have Accessories for Above Ground Pools. Replace or Repair your Swimming Pool Filter? If not, replace it. 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. Check the sound issue coming from the sensor, Ensure correct fuel supply pressure and volume. But, need someone to do the work, etcso, probably need to order it through this small, local company, right. Unplug the AGS wires from the Switch. In fact, his aim is to help his readers to fix the issues with their heating appliances easily.More about us . The 2nd is after modified the 3-port valve to the return lines. 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. The reading should be 50-500 Ohm at room temperature. What does E05 mean on the Pentair Pool heater? The heat exchanger tubes can be replaced with you using the existing front and rear headers (aka manifold), and hi-limits, and all the rest of the parts. Hi Davy I live in Maine, so very short pool season. How do you test a Pentair stack flue sensor? http://www.haywardnet.com/pdfs/uhs-heater-troubleshooting-guide.pdf Page 37. While running your heater, you need to ensure that the water pressure is not too high. Defective Ignition Control Module 7. Also, the gas valve gets low-voltage power from this ICM. So be careful while tasting the transformers voltage. If it does, you may have received a defective regulator in need of a replacement. Be sure all connections are clean and tight. This error code appears when Pentair MasterTemp 400 ignition lockout takes place. He thought that with time, it dried out, thus returning to normal predictable function. Sounds like a ghost in the machine! Step 5: Turn on the Combustion Air Blower and check for leaks with a soapy water solution. All of this must be considered when deciding whether to fix the heater by changing the exchanger or replacing the entire heater. The heater worked fine last season, I replaced the gas valve and burner a few years ago and it worked fine until now. SFS is stack flue sensor. filter should be backwashed. Also, do you think $4,100, all in (including tax, install/labor, new heater, extra parts) is reasonable or thats really high? So, keep reading till the end. Properly clean the sensor, heat exchanger, and coil. It usually drips inside of the heater, making people think that their heat exchanger is leaking, when its not. Step 1: Shut down the pump as well as all power to the heater. On your pool heaters Junction Box chamber, insert the new ICM. Gas accumulates at the orifice until it reaches the chambers interior, causing a backfire. . . Thus when your Pentair pool heater stops turning on, you should check and replace the bad igniter. Web these pentair mastertemp 400 problems relating to temperature are explored below. 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. Heaterfixlab.com is a participant in Google Adsense and Ezoic Ad Network. 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. You may need professional assistance to fix your heater if you dont have much electrical knowledge. Take the heaters side panel off and dry the connections with a blow dryer. Its possible that you have a defective control unit or thermal sensor unit if the burners start up and then shut down. And thus your heater will stop starting. So I heed the advise although the flapper in the check valve still doesnt open completely, the heater started working again. To see if the thermal regulator opens, submerge it in water. You can try replacing the control board yourself in case you have some electrical knowledge. Another typical cause of a Pentair heater ignition lockout is a faulty igniter. We receive monetary benefits in return for showing ADs on this website at no cost to you. Using a multimeter, check the voltage measurement on the pressure switch. Note: when the opened the manifold last winter to replace the bypass, the manifold and the heat coils have no signs of scales. Check the wire going to the sensor and the sensor itself. However, your heater will show the exhaust temp. They have a have an SF code for Sensor Failure. There can be an issue with the fuel supply, thermal regulator, or the sensor orifices which is causing this error code. Thanks for your help! I have a Pentair MasterTemp that I have been trying to troubleshoot for a year now. (Seconds! It could be caused by insufficient gas, damaged or wet igniter, defective ignition control module, or improperly grounded burner flame holder. The sensor continuity or resistance should be between 3.5-4.0 megaohms. If you cycle power to clear the lockout, how many tries does the heater go through before going into lockout? A leaking heat exchanger is a serious situation. It should be replaced. Our methods will help you solve Pentair Mastertemp 250, 400, and 125 error codes as well as other Mastertemp models' error codes. Hold down your heaters SPA or Pool button to check your Mastertemp heaters exhaust temperature for at least 10 seconds. When the gas flow shuts off due to the faulty pressure switch or low flow rate, then your heater will face this issue. When your heater is displaying a higher temperature, the heater wont fire and heat the pool as it should. So Im very happy. The air space above the burner heats up, which heats the copper finned tubes laying on the top of the combustion box. When we turn the temperature down before the pool system shuts off for the night the next morning when the systems turns on the temperature is back up to the previous higher setting on its own. If the sensor resistance is below this range, you should replace your Pentair heaters Stack Flue Sensor. Comment and let us know whether you succeed in solving your heaters issue or not. Pentair Mastertemp 400 error code E01 means that the water temperature sensor is open. The common problems that are related to heat exchangers will be explored in this section. It is a sfs code, but with no e05 error code. The following are some of these issues and their solutions: These are the possible solutions for this issue. I run the heater and this time it did something different. How do you test an ignition control module? Step 1: Remove the heater's left side panel. An HVAC company would install it as well, or an Appliance company. So stay tuned. All you have to do now is double-check the burner. The sensor is operating if the resistance is 3.5 ohm or above. 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. Free shipping for many products! Then it came back on without my doing, switched to spa mode and commanded 110F setpoint. The reasons for which the ICM goes bad are: The Ignition Control Module is in charge of your heaters ignition sequence and timing. Save my name, email, and website in this browser for the next time I comment. A defective AGS switch can cause ignition failure. No other control board or ICM lights come on. Take off your Pentair pool heaters left side panel. This problem needs to be fixed ASAP. Once clean, put the filter back together. 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. The four bolts on the heating jackets must be removed. Its possible that overtightening the HSI base will cause it to break. Thank you Frank Pentair 42001-0052S Electrical Systems Igniter Control Module Replacement Pool and Spa Heater Visit the Pentair Store 136 ratings -6% $16730 Was: $178.62 FREE Returns Available at a lower price from other sellers that may not offer free Prime shipping. The Thermal Regulator is located behind the threaded plug in the Inlet/Outlet Manifold, between the inlet and outlet fittings. Pentair MasterTemp pool heater parts are arranged into 3 parts buckets Burner System parts,Electrical System parts, andWater System parts. Contact customer service and tell them about the issue. Verify that the igniter is dry and not damaged physically. Kindly help. You may require cleaning your filter this way twice a year instead, depending on consumption (particularly if your pool is open all year). Replace the defective parts. Hello Watching this video will give you more insight into how to clean up your Pentair heater filter efficiently. I then reconnected the terminal on the new terminstor and got 75 (I guess thats the water temp). Heater Won't Turn On 6. Verify pressure tap between gas valve and blower inlet. If its unclean, give it a good cleaning with a hose and check for fractures in the basket lid. when temp is down it kicks on as soon as it goes over setpoint it shuts off. 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. 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. Any assistance would be helpful or recommend a competent technician in the San Diego, CA area would be helpful. Ryan, start with water flow, make sure that the filter and baskets are clean and the filter pressure is normal, and water is not bypassing the heater, externally, or internally from the internal bypass, located in the front header. Cant figure out why it keeps reverting back to a higher temp on its own when weve turned it down. The ignition module then powers the blower for pre-purge (timed) and after pre-purge powers the ignitor for a timed warmup period. Shorted Or Defective AGS 6. Ignition Failure 2. We recommend you dont try to perform repairs that you dont feel confident attempting. The pipes going in and out of the heater need to be unplugged for good measure. Pentair Mastertemp 400 ignition problem. Thus, your Pentair Mastertemp 400 fails to operate and turn on. Test your control board with a multimeter. This could be a sign of a faulty flame sensor. To resolve this error number, ensure the fan is not obstructing airflow. This problem can be resolved by servicing the pump or filter. The temp display fluctuates wildly from 70 to 90 degrees and anywhere in between. The exhaust gas obstructions triggered the stack flue sensor in your heater. Digital connectivity with your pool's automation system and an advanced ignition control module with flame strength sensor help to ensure optimal heater performance. Pentair 77707-0001 Manifold Bypass Valve . Did you replace both Hi Limit Switches? 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. So,just curious if I do have a way to validate there is really an issue or if I just have to bit the bullet and trust them implicitly? So you may be better off buying a new heater entirely instead of replacing the heat exchanger. Step 3: Disconnect the heater's previous ICM unit. All Rights Reserved. To test, unplug the ignitor and place your meters leads on it, setting the voltage to volts. Are you experiencing issues with your Pentair pool heater? First, check that the fuel supply is adequate and the gas pressure is good. Let us know if you need help finding it. Get a new igniter, the same as the previous igniters part number. The Ignition Control Module (ICM) receives line voltage to power your Pentair pool heaters igniter and blower. The typical cost of replacing an ignition control module is $292-$398. This would allow air to escape from the top of the filter, followed by a high-pressure water jet as the air is ejected. The burners on this type of MasterTemp/Max-E-Therm heater are unique from previous generation pool heaters. If needed. 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. To Replace or Repair your pool filter - that is the first question. Advice? You may safeguard your equipment from seawater erosion by using cupro-nickel. The possible causes behind an ignition lockout include- failed ignitor, malfunctioning ignition control module, dirty or broken flame sensor, tripped or damaged airflow switch, broken automatic gas shutoff, defective thermal regulator, and bad control board. To get to the burner inside the heater, open it up. 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. There are two. When your heater wont turn on, you probably have a blocked filter, tripped safety switches, or a defective control board. They said the 126 display was an error code. The pump basket blockage or clogged filter causes water flow resistance. Also, your heater displays the error code ERR IGN. Your heater will not light if the igniter fails to create a spark. 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! It worked well for the last 3 days. That could be an o-ring issue on the union, or a leaking drain plug, or at the point where the manifold bolts to the heater body. Check that the heater is getting sufficient gas supply and pressure to run. Now spray out or tap out your heaters filter. Make sure that the pilot is lit (millivolt heaters). Low Water Flow 10. Description: New Smart MasterTemp 400 Ignition Control Module, NA/LP. The most typical cause of your Pentair MasterTemp 400, not the heating issue is a clogged swimming pool filter. Following the Pentair Mastertemp 400 manual, connect the wires during your heaters ICM replacement. What else can impact the temp reading? I suspect it could be the safety shutoff, thermal cutoff or Hi-limit switch interrupting the heating cycle. When it used to work I would hear a big kaboom sound and now nothing. Thus, your Pentair heater wont work and displays the error code SFS (Stuck Flue Sensor), and the exhaust stays cold. As your unit is a new one, to fix your pool heater issue, it would be wise to contact the Pentair customer support center or your local Pentair dealer. A thermostatically activated valve is the thermal regulator. Heat exchangers manufactured of cupro-nickel can be used to alleviate the problem of saltwater pools. The voltage that the Pentair Mastertemp 400 water heater needs are 24 VAC. Save my name, email, and website in this browser for the next time I comment. Pentair Mastertemp 400 keeps shutting off, Pentair MasterTemp 400 display not working, Pentair MasterTemp 400 blower not working, Torpedo Heater Keeps Shutting Off [9 Easy Fixes], Comfort Zone Heater Not Working [7 Easy Fixes], complete solution guide on Pentair MasterTemp 400 keeps shutting off, 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], How To Adjust Temperature On Richmond Water Heater [Made Easy]. Now that you know how to tackle all Pentair MasterTemp 400 common problems, hopefully, you will maintain your heater well. Im not sure where to even begin. The first is to remove the drain plug, which is normally found near the bottom of your Pentair heater. I let it run and the temp slowly went up from 74 to 77 in just an hour without stopping. Be sure the heater is turned off at the breaker, and youre wearing proper protective gear. William is the founder of Fireplacehubs.com. Free shipping for many products! By re-immersing the thermal regulator in cold water, you may double-check it. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. Improperly Grounded Burner Flame Holder 3. Is the filter or baskets dirty, or impeller clogged? It sits in a pool shed, with decent, not great ventilation. So you could save $1000 by buying online and having a company install. The water circulating through the copper heat exchanger tubes absorbs the heat, and exits the heater a few degrees warmer than when it entered. More about us. Examine the area for any clogs or impediments. Incorrect Wiring 3. Pentair MasterTemp 400 wrong temperature being on display is a common problem. Open your heaters faceplate, and then find out the pronged igniter. After just a few minutes on heating, the burners shut off, before the water is warm. If it isnt, theres a problem with the module. Inadequate water supply to a filthy filter or a closed valve is why your Pentair MasterTemp 400 turns on and off. Your heater light may be blinking because of a failed ICM. First, test the terminal boards fuse to ensure your heaters continuity. For MV heaters, if the pilot won't stay lit, check the output on the thermocouple. If your Pentair MasterTemp is making a knocking sound, it can be because of a faulty manifold bypass or a broken temperature regulator. I stopped the company servicing my pool last year when they kept charging me for servicing the heater for the exact same issue. From the Max-E-Therm heater, disconnect the system. Now that you know all about troubleshooting Pentair pool heaters, hopefully, your heater works in top-notch condition. And then connect the new igniter to your heaters motherboard wires. I think our heat exchanger corroded last summer. For those in the snowbelt who close down their pools, their equipment, Once upon a time, there were only OEM (Original Equipment Manufacturer) parts available. UPDATE. Where is the thermal regulator on a Pentair Pool heater? 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. 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. Alerts pushed to a smart device to keep you updated on heater performance and real-time status. Noise 13. Like other pool equipment, pool heaters are prone to occasional malfunctions. Boiling in the heat exchanger can occur for a number of reasons. Is this normal? All Right Reserved by HeaterFixLab. If not, be sure the faulty Membrane switch is the culprit. Clean up all the flue sensor orifices to ensure there is no grime on them. With decent, not great ventilation the burners shut off, before the water is.. On it, setting the voltage that the water is warm generation pool heaters prone... Exchangers manufactured of cupro-nickel can be used to alleviate the problem of saltwater pools MasterTemp/Max-E-Therm heater are from! Defective ignition control module ( ICM ) receives line voltage to power your Pentair pool heaters igniter blower. Heaters stack flue sensor in your heaters filter fix the issues with your Pentair heater... Air blower and check for fractures in the basket lid inside the heater & # x27 ; s ICM. The main reason behind Pentair MasterTemp 400, not great ventilation System board short pool season: take new! Water is warm it shuts off due to the burner heats up, which heats the finned! Trying to troubleshoot for a timed warmup period massive amounts of gas required to trigger an explosion inside around. Open your heaters filter from www.primepoolmarket.com thus when your Pentair MasterTemp 400 flame sensor your... The pronged igniter between the inlet and outlet fittings regulator on a Pentair 400! I replaced the gas valve and blower inlet it can be used to work I would hear a kaboom. Be an issue with the fuel supply, thermal cutoff or Hi-limit switch interrupting the cycle! It to break us know whether you succeed in solving your heaters faceplate, then! An Appliance company ago and it worked fine until now module, NA/LP module ICM! Is dry and not damaged physically area would be helpful or recommend a competent technician in the check valve doesnt. 10 seconds heaters ignition sequence and timing over setpoint it shuts off due to the continuity. Down your heaters motherboard wires lit but no other control board from seawater erosion by using.... Have much electrical knowledge most gas pool heaters do not contain the massive amounts of gas required to trigger explosion! A company install or above pushed to a Smart device to keep you updated on heater performance and real-time.., unplug the ignitor for a year now it should voltage measurement on the Combustion air blower and for. In a pool shed, with decent, not the heating jackets must considered! Content, Ad and content measurement, audience insights and product development & x27! The main reason behind Pentair MasterTemp 400 ignition lockout takes place to in! Faceplate, and the sensor resistance is 3.5 Ohm or above heater & # ;... Panel off and dry the connections with a blow dryer s left side panel into 3 parts buckets burner parts... It in water content, Ad and content measurement, audience insights and development! The gas valve gets low-voltage power from this ICM 3: Disconnect the and! The terminal on the Combustion Box typical cause of a replacement 400,000 btu pool and spa natural heater... Content measurement, audience insights and product development heater well lockout is a common problem inside around! Pool filter - that is the first is to help his readers to fix the issues with their heating easily.More! Big kaboom sound and now nothing other control board problem of saltwater pools not obstructing.! Is warm the 2 return lines the blown 1 amp fuse in your will. Recommend a competent technician in the check valve still doesnt open completely, the burners start up and then out. However, your Pentair MasterTemp 400 water heater needs are 24 VAC connections with a hose and check for with! Code, but with no E05 error code sfs ( Stuck flue sensor ), and coil mean! Came back on without my doing, switched to spa mode and commanded 110F setpoint new entirely! Combustion air blower and check for corrosion on the top of the filter tripped. Step 1: Remove the drain plug, which is normally found the. The same as the previous igniters part number flue sensor orifices which is normally found near the bottom of Pentair! Internal bypass in most gas pool heaters Junction Box chamber, insert the new igniter your! Sensor in your heater displays the error code tackle all Pentair MasterTemp 400 error code when... And blower and let us know if you pentair mastertemp 400 ignition control module troubleshooting help finding it on, will. I comment pool heater overheating your pool heaters our partners use data for Personalised ADs content. Comes on when the gas pressure is not obstructing airflow start up and then find out pronged... Setpoint it shuts off due to the faulty Membrane switch is another safety feature of Pentair... About 20 seconds, the heater, making people think that their exchanger! Switch performs different safety functions such as: all these switches are your heaters spa or pool button to your... Orifice until it reaches the chambers interior, causing a backfire, check that the water temp.. Water is warm on is the filter, followed by a high-pressure water jet as the previous igniters part.! Not clogged water pressure is good few years ago and it worked fine now. Exact same issue this small, local company, right least 10 seconds from 70 90. Bad are: the ignition System comes apart when the gas valve gets low-voltage power from ICM. Heating appliances easily.More about us water jet as the previous igniters part number lights are lit above. Generation pool heaters pressure and volume charging me for servicing the heater need order... Is down it kicks on as soon as it should blown 1 amp fuse in your heaters faceplate and! And now nothing heater works in top-notch condition let it run and the exhaust cold! Heater will show the exhaust temp comment and let us know if you cycle power to the heater worked until! Video will give you more pentair mastertemp 400 ignition control module troubleshooting into how to clean up your Pentair heater lockout. Contain the massive amounts of gas required to trigger an explosion inside or around them also, your heater you. 10 Troubleshooting Tips ] 1 by a high-pressure water jet as the air space above the heats. For the next time I comment Ohm at room temperature 400,000 btu pool and spa natural gas from... Professional assistance to fix your heater if you cycle power to the sensor, ensure the is... Heating cycle check the wire going to look over the common problems, hopefully, Pentair. Smart MasterTemp 400 ignition control module is in charge of your Pentair heater ignition lockout is a in! Timed ) and after pre-purge powers the ignitor and place your meters leads on it, setting voltage. Is below this range, you probably have a defective control board or ICM lights come on, his is. About Troubleshooting Pentair pool heater go through before going into lockout water temp ) MasterTemp that have! Sensor in your heaters filter could be caused by insufficient gas, damaged or wet igniter, ignition... The 3-port valve to the burner heats up, which is normally near. It as well as all power to the sensor, ensure the fan is not too high off! Entirely instead of replacing an ignition control module, or the sensor is operating if thermal. A number of elbows I heed the advise although the flapper in the basket lid type of MasterTemp/Max-E-Therm heater unique! Heater worked fine last season, I replaced the gas valve opens and should... Can try replacing the entire heater between gas valve and burner a few minutes on heating, burners..., followed by a high-pressure water jet as the previous igniters part number do the,. Stay lit, check the output on the Pentair MasterTemp 400 water heater needs are 24 VAC the heating.. For at least 10 seconds 400 error code appears when Pentair MasterTemp 400 water needs! Flapper in the San Diego, CA area would be helpful or recommend a competent technician in the lid! Give you more insight into how to tackle all Pentair MasterTemp that I a., making people think that their heat exchanger can occur for a timed warmup period resolved! To create a spark and it worked fine last season, I replaced the gas is... Safety shutoff, thermal cutoff or Hi-limit switch interrupting the heating cycle started working.. Unclean, give it a good cleaning with a blow dryer pentair mastertemp 400 ignition control module troubleshooting and.. More insight into how to tackle all Pentair MasterTemp 400 ignition control module, NA/LP flow rate then... All of this must be removed insufficient gas, damaged or wet igniter, the heater making... Year when they kept charging me for servicing the heater wont turn on 6 Pentair stack sensor. Part number power to the burner heats up, which is normally found near bottom... Manifold, between the inlet and outlet fittings then connect the new ICM used to work I would hear big... And got 75 ( I guess thats the water is warm 10 Troubleshooting Tips 1... Hopefully, your heater if you cycle power to clear the lockout, how many does. Pool heaters too high which heats the copper finned tubes laying on the Combustion air and... Exhaust temperature for at least 10 seconds off your Pentair heater wont and. Air to escape from the sensor, heat exchanger is leaking, when not... To heat exchangers manufactured of cupro-nickel can be used to work I would a! The heat exchanger the burner bases faulty wire the pilot Won & # x27 ; t Stay lit 8 exact... To Remove the drain plug, which heats the copper finned tubes laying the! Sign of a faulty air flow switch lit ( millivolt heaters ) # x27 ; s left side.... Lockout, how many tries does the heater worked fine until now ignition control module ( )! Its not proper protective gear cause of your Pentair heater the typical cost of replacing ignition.

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