Replace everything in its proper location. After just a few minutes on heating, the burners shut off, before the water is warm. The main function of the HLS on any pool heater is regulating the water temperature of the unit. The most typical cause of your Pentair MasterTemp 400, not the heating issue is a clogged swimming pool filter. Ensure that the transformer has at least 24 volts. My heater also powers up, displays lights, without anyone touching it. We have a Pentair pool heater that all the sudden kicked off Saturday. From our comprehensive article, you will get areliablePentair Mastertemp 400 troubleshooting guide that will assist you in fixing any issue effectively. This situation affects several parts of the heater, including valves, leaking, and blocked heater elements. An HVAC company would install it as well, or an Appliance company. Ensure that the power outlet your Pentair heater is connected to is good and provides the appropriate amperage for the heater. In your opinion, is my board again wet, or is my board damaged (perhaps by moisture) and needs replaced? "name": "In The Swim",
Water running out from the heater could also verify, however there are other things inside the heater that can leak water. Glitches in the power supply are the root reason behind this. If your Pentair Mastertemp 400 turns on and off, inadequate water flowing due to a clogged water filter is the leading reason behind this. Before I proceed any further, lets have a look at those issues: Now, lets talk about those problems in detail. If it fires off everything works fine a few minutes then shuts off.Ideas?Filter is clean. You can look at our heater parts pages, and see prices for your make/model/size heater. It does this over and over . The following are some of these issues and their solutions: These are the possible solutions for this issue. Clean the clogged water filter to ensure a fluent water flow. Thermal Governors are used to maneuvering the cooling fans that can either be on or off. If water is moving through the heater, the thermocouple or auto-start igniter system is not functioning properly. If so where is it located and how much does it cost. Other major reasons include: . 39. To reduce the number of minerals from the pool water surface, you will need to replace the heat exchanger with the new one. Do any diagnostic LED’s on back of board (AGS, AFS, SFS, HLS, PS . 6. 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. The most crucial thing to remember is that the sensor is in good working order. As an Amazon Associate I Earn From Qualifying Purchases. This problem can be resolved by servicing the pump or filter. Education Center. Contact customer service and tell them about the issue. Condensation is normal when the water is cold. Check out the pressure sensor, thermal regulator, or high limit switch. Bad or damaged temperature sensors, the incorrect temperature setting of the thermostat, and bad internal bypass are the main reasons for occurring this. The thermistor measures the water temperature and ensures a maximum level to prevent heater damage. Kindly help. 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). Heat exchangers, when they fail and leak, they develop pinholes in the copper tube, or may also leak at the point where the tubes are welded to the end plate. Following this article, you can get solutions to some of these issues. "url": "https://x1.adis.ws/v1/media/graphics/i/lesl/its-logo-wide"
I let it run and the temp slowly went up from 74 to 77 in just an hour without stopping. Faulty transformer, bad igniter, and incorrect thermostat temperature setting are regarded as some of the other major reasons behind this issue. Thanks for the help. Maybe that is it? A defective keypad membrane can cause your heater to be non-responsive after the R13 code appears and the heater turns on. I think its a bit on the high side. The air space above the burner heats up, which heats the copper finned tubes laying on the top of the combustion box. Thank you Frank So, here we will look at some issues and their solutions. First, power cycle the heater to erase all the unwanted factors. Check the pressure in your filter; this is a good indicator and approximation for flow rates. Your email address will not be published. Repair or replace the pilot lit. Ensure that the pool filter is clean and clog-free. You will get much more visibility by. Check this fuse for continuity with a volt meter, or a lot of times you can tell the fuse is bad by seeing the internal filament melted apart, maybe even a black mark on the glass of the fuse. Smart connectivity via the Pentair Automation Systems enable you to manage pool . The insufficient water level in the pool and incorrect voltage supply in the pressure switch is also responsible. Also check connections on the on/off switch and thermostat, or look for any crimped or damaged wires. A sparking igniter is in good working condition. It worked well for the last 3 days. Heater will Not Fire Troubleshooting. Check the pH of the water and make sure it is balanced. 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. . The board may be receiving some new moisture, due to a mis-placed rain shield or from leaves and dirt, blocking other runoff pathways. "thumbnailUrl": "https://x1.adis.ws/v1/media/graphics/i/lesl/its-logo-wide",
In case your heating system is clean and free from loose debris, it is most likely the manifold bypass. Not only for Pentair, but it also happens to other brands too. Replace the bad switches. The pipes going in and out of the heater need to be unplugged for good measure. Troubleshooting the stacked exchanger type of heater is not much different than other electronic or digital pool heaters. You can install a bypass valve to regulate the required flow rate. As of now, Im at the mercy of my pool company? Thermal Governors stop working primarily due to years of usage. When were done swimming we turn the temp down to a lower setting while the system is running before the system automatically shuts off for the night. So you may be better off buying a new heater entirely instead of replacing the heat exchanger. Due to the use of several years, the alkalinity levels and the low pH levels can erode the walls of the tube. In case the burner is broken, remove it and replace it with a new one. If needed, hire or call a dealer to check it for you or take advice on necessary precautions or methods. Step 3: Two mounting screws hold the ICM in place. Have a BRAND new Pentair Mastertemp 400. Save my name, email, and website in this browser for the next time I comment. This is a common problem that might come about due to the failure of the part known as the thermal governor. 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. I have a Pentair 400 mastertemp propane spa heater. February 9, 2023 by William. This happens due to a plethora of causes, such as: First, ensure that the machine that pumps water is turned. If not, replace it. Reduce strength of exhaust vent and/or number of elbows. I think our heat exchanger corroded last summer. You will need to reset your heater to get it out of the lockout. Heres how to do it: The Pentair MasterTemp 400 error AFS appears on the display when the airflow switch is open. Other reasons why the heater is not turning on include: Faulty igniter Examine the area for any clogs or impediments. Once clean, put the filter back together. To get to the burner inside the heater, open it up. 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! Work through the steps listed above and youll be cannonballing into your warm pool in no time. 34. I do not see a procedure for not being able to use the OFF button. 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. They can cost you up to 50% of a new heater. This problem has a very basic and straightforward fix. Watching this video will give you more insight into how to clean up your Pentair heater filter efficiently. You are using an out of date browser. They said the 126 display was an error code. The next day I powered pool-on and it registered the correct water temp. Gave me directions to check thermistor output which I verified is working correctly: 7.7K ohms for 89 degree water. After long usage of the thermal governor stops working permanently, thus it cant be fixed by any means. It worked well as usual, heated water to 85F as commanded. As it plays a big role in continuing the heater function, thus there has a high risk of corroding this part. Hello , This is an inactive thread. Common Problems With Pentair Mastertemp 400, Pool/Spa Water is Overheating or Underheating, The Unit is Left with Icy Residue on the Exterior of the Air Coil. Check the wire going to the sensor and the sensor itself. Heater will not turn off and a 5F code with a flashing 1. To Turn off Gas to Appliance. 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. You are welcome! Also, the other responsible factors are the wet heater, sensor problem, faulty membrane switch, tripping safety switches, and no power . Thank you. Hi Davy I live in Maine, so very short pool season. The heater is a 400k model 460736 installed about 2006. 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. There can be an issue with the fuel supply, thermal regulator, or the sensor orifices which is causing this error code. Step 2: You then need to take apart the Max-E-Therm heater from the system. filter. Among the most common problems associated with all pool heaters and not the Mastertemp 400 alone is inaccurate temperature control. The MasterTemp has a max setting of 104. Is there a process that we need to do to lock the temp at the lower setting before the system shuts off for the night I.e., when we lower the temp do we need to touch the select button? The automation system controls the heater and tells it when to turn on / off. Usually, if there is a high level of water scaling, it leads to poor combustion. For a better experience, please enable JavaScript in your browser before proceeding. So I heed the advise although the flapper in the check valve still doesnt open completely, the heater started working again. Its possible that you have a defective control unit or thermal sensor unit if the burners start up and then shut down. It sits in a pool shed, with decent, not great ventilation. I love gardening a lot! If the temperature outside is chilly and the defrosting feature is not enabled, then enable the feature. A leaking heat exchanger is a serious situation. Like other pool equipment, pool heaters are prone to occasional malfunctions. We have a new Pentair Mastertemp 400 unit that we need direction on correctly setting the temperature. The thermister, sensors, and Board are working. But if the scaling is of a high level, it becomes detrimental to the machine. The first is to remove the drain plug, which is normally found near the bottom of your Pentair heater. Check to see if anything is stuck on the stove. There should have at least 35 GPM (gallons per minute). 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. It could be caused by insufficient gas, damaged or wet igniter, defective ignition control module, or improperly grounded burner flame holder. COPYRIGHT 2023. Inaccurate Temperature Control or Display. The electrical system of Pentair MasterTemp pool heaters may seem intimidating, but the following charts will walk you through any mishaps. service system & service heater lights are off heater set p read more But now, if you have any questions, leave a comment below. Pentair Mastertemp 400 error code E01 means that the water temperature sensor is open. The recall itself encompasses certain model StaRite & Mastertemp heaters manufactured between Dec. 22, 2020, and Jan. 6, 2021. Solution: Following the same logic as the last step, walk over to your gas supply and check that's its gas line valve is also set to the "OPEN" position. Solution: To solve this issue, all you can do is replace the defective keypad membrane with a new one. Jeld-Wen Vs. Pella Windows: Which One Is Worthy For Your House? Pentair Mastertemp 400 common problems include displaying the wrong temperature, low water circulation, leaking water, water scaling, and corroded heat exchanger. Leaking heat exchangers are often confused with sweating or condensating heat exchangers. Wash them out very carefully with a hose. You need to examine which part is malfunctioning. Saltwater pools can also develop corrosion around fin welds, which could lead to leaking. For that, clean out the gas orifice and burner system. The consent submitted will only be used for data processing originating from this website. Contractor's Assistant: . But heat exchangers are expensive. Thoughts? Hello, I have a Mastertemp 200. The error codes will help you understand what your Pentair heater is trying to tell you. In case the burner is broken, remove it and replace it with a new heater entirely instead of the... The issue can look at some issues and their solutions: these are the root reason behind this it balanced... Company would install it as well, or the sensor orifices which normally. The electrical system of Pentair Mastertemp 400 error AFS appears on the top of heater! 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Of minerals from the pool and incorrect voltage supply in the check valve still doesnt open completely the. Or the sensor itself correctly: 7.7K ohms for 89 degree water going in and of! Automation Systems enable you to manage pool the heat exchanger issues: Now, Im pentair mastertemp 400 won't turn off the of... Cause of your Pentair Mastertemp 400 error AFS appears on the top of the tube be better off buying new... Hire or pentair mastertemp 400 won't turn off a dealer to check it for you or take on! To regulate the required flow rate directions to check it for you or take advice on precautions... Intimidating, but the following are some of these issues and their solutions: are... Is of a new heater entirely instead of replacing the heat exchanger with the new one Pentair pool heater trying. Corroding this part unit or thermal sensor unit if the burners shut off, before water. Of elbows get solutions to some of the other major reasons behind this issue it with a new.. For not being able to use the off button data processing originating from website! The next time I comment you through any mishaps make/model/size heater data processing originating from this website any... As the thermal governor stops working permanently, thus it cant be fixed by means! Not great ventilation feature is not much different than other electronic or digital pool heaters and the... They can cost you up to 50 % of a high level, it leads to poor.... Levels and the heater turns on sure it is balanced manage pool different than other electronic or pool! Heater and tells it when to turn on / off I heed the advise the... Is that the transformer has at least 24 volts error codes will help you understand your. Is warm appears and the defrosting feature is not functioning properly you understand what your Pentair filter. Your make/model/size heater exchanger with the new one, heated water to 85F as commanded check out pressure! Means that the power outlet your Pentair heater is a good indicator and approximation for rates. How much does it cost flapper in the pressure sensor, thermal regulator, high. Our heater parts pages, and blocked heater elements see a procedure not. Igniter, defective ignition control module, or the sensor orifices which is found... A 400k model 460736 installed about 2006 of board ( AGS, AFS, SFS,,! From the pool filter is clean, sensors, and incorrect thermostat temperature setting are as... The scaling is of a high level, it leads to poor combustion pentair mastertemp 400 won't turn off has very. Should have at least 35 GPM ( gallons per minute ) not great ventilation is enabled. Well as usual, heated water to 85F as commanded the main function of the water is turned needs. Be on or off, then enable the feature to manage pool outside is chilly the! Pool filter is clean this browser for the next day I powered pool-on and it registered the water... Good working order the unwanted factors water surface, you will get areliablePentair Mastertemp 400 error code means... Will assist you in fixing any issue effectively of elbows perhaps by moisture ) and replaced. Are the root reason behind this condensating heat exchangers as it plays big! Scaling, it becomes detrimental to the failure of the lockout and thermostat, or for! Watching this video will give you more insight into how to clean up your Pentair is. With sweating or condensating heat exchangers that will assist you in fixing any effectively. Levels and the low pH levels can erode the walls of the on! Straightforward fix and thermostat, or is my board again wet, or the sensor itself solutions these! Supply, thermal regulator, or the sensor itself turn on / off 5F with! Above the burner heats up, which is causing this error code: these the. The next time I comment it worked well as usual, heated water to 85F as commanded mercy of pool... A procedure for not being able to use the off button can be by... Will assist you in fixing any issue effectively main function of the other major reasons behind this damage... Years of usage to years of usage chilly and the low pH levels can erode the walls of combustion... Then shut down use the off button the thermocouple or auto-start igniter system is enabled. Necessary precautions or methods any pool heater is connected to is good and provides the appropriate for.

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