pentair mastertemp 400 won't turn offpentair mastertemp 400 won't turn off

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When there build very high levels of minerals especially calcium on the surface of the water, the intensity of the corrosion increases instead of protection. The control board is the culprit when there is no click. In case the burner is broken, remove it and replace it with a new one. Test your control board with a multimeter. "url": "https://x1.adis.ws/v1/media/graphics/i/lesl/its-logo-wide",
It also could be a bad pressure switch, or switch out of adjustment, some have a small screw that can be turned to reduce/increase psi. As it plays a big role in continuing the heater function, thus there has a high risk of corroding this part. Keep in mind, you have two sensors. The most crucial thing to remember is that the sensor is in good working order. First of all, ensure that the heater and blower are getting the correct voltage. Heat pump troubleshooting guide for Pentair pool heaters. 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. The thermal regulator can be stuck closed. If it fires off everything works fine a few minutes then shuts off.Ideas?Filter is clean. },
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Problems and Corrective Action. If your Pentair Mastertemp 400 turns on and off, inadequate water flowing due to a clogged water filter is the leading reason behind this. Solution: Alter the chemistry of the water and reach an equilibrium. Ensure that the pool filter is clean and clog-free. Still have the power light lit but no other lights are lit. A defective keypad membrane can cause your heater to be non-responsive after the R13 code appears and the heater turns on. Home / Pool Repairs / Equipment Repairs / Pentair Pool Heater Troubleshooting Guide. Check out the internal and external bypass systems. }
. With nearly 10 million pool pumps operating in, In our second in a series of pool parts pictorials, this time we take a high-res look at parts for gas pool, WhenHayward multiport valves start to age different problems can arise, some are just annoying and some are actually detrimental to the filter, Pentair Pool Heater Troubleshooting Guide, Must Have Accessories for Above Ground Pools, http://www.haywardnet.com/pdfs/uhs-heater-troubleshooting-guide.pdf. Change your transformer if the supply is lower than the range mentioned. Replace if there have any defects. The recall itself encompasses certain model StaRite & Mastertemp heaters manufactured between Dec. 22, 2020, and Jan. 6, 2021. Not sure why a pool tech wouldn't replace the 2 wire remote . This post covers the troubleshooting steps for Pentai MasterTemp heaters and the Sta-Rite Max-E-Therm natural gas and propane heaters. You will get much more visibility by. Lower gas supply, blocked filter, defective gas valves, gas supply valves, or plumber valves are highly responsible for this. },
Cleaning your heat pump on a regular basis will help you avoid this problem. 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. Sure, the most immediate and direct source of information would come from Pentair themselves, but it doesn't address the need for immediate guidance a pool owner may be searching for online. The next day I powered pool-on and it registered the correct water temp. "caption": "In The Swim Blog"
Remove the hard obstacle near the sensor. If the voltage is not optimum or the required level, the Mastertemp 400 wont turn on. A leaking heat exchanger is a serious situation. To troubleshoot each of the above issues, the user needs a quick working solution guide. You can install a bypass valve to regulate the required flow rate. This low inventory might be down to a harmed transformer or a low stockpile of voltage to the hotness siphon. The service system light is on, and it has two red lights on, on the reverse side of the motherboard. . Our Pentair pool heater troubleshooting guide will have your heater back in business in no time. ******************************************************** No, you cannot. In case your Pentair MasterTemp 400 is overheating your pool water, the culprit most likely is the control board. Then without warning, it started flashing the following error codes: Ad0 then SF 1 then 888 then 128 then r13, then keypad screen would go blank. View online or download Pentair MasterTemp 400 Brochure. 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. This problem can be resolved by servicing the pump or filter. Any suggestions? Be sure the heater is turned off at the breaker, and youre wearing proper protective gear. Along with that, check the water flow to the heater. You are using an out of date browser. If its unclean, give it a good cleaning with a hose and check for fractures in the basket lid. "url": "https://blog.intheswim.com/"
I think its a bit on the high side. So I thought that was causing the problem. 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. "primaryImageOfPage": {
You may need to replace it. If your pool heater blower is not working, be sure the blower is blocked by debris. 35.
Also check connections on the on/off switch and thermostat, or look for any crimped or damaged wires. Is the filter or baskets dirty, or impeller clogged? If the thermistor tests are bad or faulty, replace them with a new one. Read More. Examine the connection between the burner and the gas and other lines to see if it is secure. "@context": "https://schema.org/",
Tech did everything but change the Regulator. Pentair Pool Support 1-800-831-7133. The unit starts heating correctly, the electronic ignition sparks, the gas turns on and all the burners light. Something mild to someone might be too hot or too cold for another. Copyright 2022 In The Swim. (Be sure that it is leaking and not just condensating). Now, measure the voltage reading on the water pressure switch. As we have seen, there are some Pentair Mastertemp 400 common problems that may also face. If still there are strange sounds or shaking, contact the manufacturer of the heater because it could be risky for you now. {
Pentair MasterTemp 400 K heater Pool filter clean, strainers clean, good water flow to pool and spa. TROUBLESHOOTING OF AFS ERROR LIGHT LEADS ME TO FIND A COMPLETELY DIFFERENT AND MUCH MORE COMPLICATED AND EXPENSIVE ISSUE.DON'T ASSUME YOU HAVE A DEFECTIVE AF. Hi Emma, your heater has two thermostats, for convenience, to keep one set to spa temp and one set to pool temp, so you dont have to go back and forth, and try to remember the exact setting each time. Note: when the opened the manifold last winter to replace the bypass, the manifold and the heat coils have no signs of scales. I designed my home myself with the help of my beloved wife. "headline": "Pentair Pool Heater Troubleshooting Guide",
I just never thought something was wrong with it because the company servicing my pool and heater had it setup like that. Check out the thermal regulator as well. The 2nd is after modified the 3-port valve to the return lines. This residue is usually formed at the bottom. This would allow air to escape from the top of the filter, followed by a high-pressure water jet as the air is ejected. Now check out the heat exchanger as well. Mastertemp 400 Safety Features. Look at the blower if you hear a clicking sound. Even if they are fixed somehow, they will stop working after a while. There is nothing, but you have to replace it to fix the leaking issue. . Due to the use of several years, the alkalinity levels and the low pH levels can erode the walls of the tube. And again, I always thought that when something big happened, I would have to get it replaced. If you have a Pentair MiniMax NT and are experiencing technical issues, this blog is for you. If the fact is related to the safety switch, jumpstart your heater and replace the bad switches. follow our solution guide on Pentair Mastertemp 400 not heating section from Pentair Mastertemp 400 Common Problems. Voltage checks have the potential for a lot of danger. This problem needs to be fixed ASAP. like it is having trouble exhausting, check for birds nest or heavy spiderwebs or leaves on the heat exchanger. Replace the bad board. Sometimes, a clogged water filter restricts the water flow and overheats the heater. If the machine that circulates is not turned on, Damage to the switch which controls the water pressure. There is no error code or red service heater light on. A sparking igniter is in good working condition. The temperature should always be higher than the pool heater. Pentair Mastertemp 400 Heater Not Turning On, 2. The heater works fine but the temp display shows 55 deg when the water temp is 90 deg. Make sure all the valves are opened and in good working conditions. Follow the below instructions to resolve Pentair Mastertemp 400 wont ignite issue. The wiring diagram is given below for your reference. Ensure that the control board is dry. 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. Manuals; Brands; Pentair Manuals; Swimming Pool Heater; MasterTemp 400; . When the heater temperature exceeds the safety level, it activates and shut down the heater. They usually cannot be fixed. Troubleshooting. Installing a pool heater is not simple, but is done DIY all the time. Acquire a 10k ohm resistor. A dirty filter can prevent a heater from firing and it can also cause your heater to shut off before warming the water to the desired temperature. If water is moving through the heater, the thermocouple or auto-start igniter system is not functioning properly. Test your fill water too. The controls and circuit boards for the Max-E-Therm and the MasterTemp are fairly identical. Its a fun combination of plumbing, wiring and gas. so does the heater actually turn off when you use the automation to turn it off? The mastertemp display doesn't light up when controlled remotely. But if the scaling is of a high level, it becomes detrimental to the machine. Might charge under $500 to install. This error code should not be shown on your Pentair heater at this point. It worked well for the last 3 days. The thermister, sensors, and Board are working. There can be an issue with the fuel supply, thermal regulator, or the sensor orifices which is causing this error code. you won't get any ignition in your heater. If not, replace it. A pool technician replaced 3 sensors however it still does not work. These Pentair MasterTemp 400 Problems relating to temperature are explored below. "name": "Mark Garcia",
Section 5. Replace the bad thermistor. Hi Check the thermal regulator kit, to be sure that it is not bypassing too much water, or not bypassing enough. Hello. Solution: Replace the thermal governor with a new one. I replaced the HLS twice to no avail. Broken safety switches, faulty transformers, and wrong temperature settings are also responsible. Troubleshooting the stacked exchanger type of heater is not much different than other electronic or digital pool heaters. These problems could lead to build-up oflime scaleinside the copper tubes, which renders the heat exchanger useless and requires a replacement. Have a BRAND new Pentair Mastertemp 400. When the gas flow shuts off due to the faulty pressure switch or low flow rate, then your heater will face this issue. Along with the fluctuation the heater cycles. The rest of the unit seams to work correctly as water is heated to the selected temperature and the heating cycles normally to maintain the desired temperature. "contentUrl": "https://x1.adis.ws/v1/media/graphics/i/lesl/its-logo-wide",
Beyond that, look thru this troubleshooting guide and consult your pool heater owners manual, as I cannot troubleshoot your heater from here. "dateModified": "1/8/2019",
To get rid of Pentair MasterTemp 400 code E05, first, check that the fuel supply is adequate and the gas pressure is good. The possibility of water chemistry issues like calcium buildup in the heat exchanger, low water flow, and faulty pressure switch can create strange sounds in your heater.To solve this sound issue, check through the below solutions. Assuming the voltage isn't ideal or the necessary level, the Mastertemp 400 won't turn on. Follow this video below for instructions on Pentair MasterTemp 400 control board replacement. Pentair MasterTemp 400 error code E06 is displayed on your LED screen when the stack flue sensor has shorted. "width": "611",
Contact customer service and tell them about the issue. Could the problem be with the flow or pressure sensors? So the best possible solution in this regard is to acquire a new thermal governor. 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. When I turn it on the blower comes on as well as the heater light starts blinking. This low supply may be down to a damaged transformer or a low supply of voltage to the heat pump. 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. 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). If that is not, the incorrect voltage supply to the heater and blower, shorted pressure switch, fusible link, and defective hi-limit switch lead to the blower failure of the heater. Inaccurate Temperature Control or Display. What is the function of the High Limit Switch on Pentair? 4. The common problems that are related to heat exchangers will be explored in this section. Additional Resources. Pentair Pool Filters, Pool Pumps, Pool Heaters, Pool Lighting & Pool Automation. Our Pentair MasterTemp troubleshooting guide starts with the error codes shared by both models. No mater how many times I press the Heater Off button, the heater does not go off and the display panel does not go blank. Combustion appears normal, but the flame does not stay lit. Very low pHand alkalinity levels over several years can strip the copper from a heat exchanger and wear the tube walls paper thin. Using a multimeter, check the voltage measurement on the pressure switch. 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. All you have to do now is double-check the burner. Pros And Cons Of Vinyl Plank Flooring With Trusted Brands Mention, Zinc Vs. Copper Roof Strips: Key Features With Pros And Cons of Each. 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. Solution: To solve this issue, all you can do is replace the defective keypad membrane with a new one. "width": "611",
The thermal regulator should be in fine working condition. I would place the valve perpendicular to the pipe, to block all bypass flow, and see if that makes a difference? Kindly help. This could lead to leakage. I then reconnected the terminal on the new terminstor and got 75 (I guess thats the water temp). UPDATE. After about 20 more seconds the heater light goes out . Check out the other heating elements. Replace the bad switches. Product HIN / Code Requirements / Safety Warning. The Thermal Governor has become jammed and is unable to open. 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. Anyway, fix the problem by following the below methods: If the water level is too low than normal on your pool heater, it would be a possibility of a clogged water filter. SFS is stack flue sensor. Education Center. Theburner system of the MasterTemp/Max-e-Therm heaters is called the flame holder. How do you test a Pentair stack flue sensor? The green spa or pool light comes on but the orange light for the heater doesnt come on. This issue should be checked ASAP. You can try replacing the control board yourself in case you have some electrical knowledge. Change the waters chemicals to achieve equilibrium. We activate both functions from a Jandy control inside the home Theres no code on the machine outside to indicate possible problems. I had to turn off . Like other pool equipment, pool heaters are prone to occasional malfunctions. The MasterTemp has a max setting of 104. The consent submitted will only be used for data processing originating from this website. The main reason behind Pentair Mastertemp won't turn on is the automatic gas shut-off. The Mastertemp 400 requires a voltage of 24 VAC. Replace everything in its proper location. "description": "Pentair Pool Heater Troubleshooting Guide, step by step method to find and fix your Pentair gas pool heater, the Minimax or Mastertemp. This can cause cycling. People often confuse or term this leakage as sweating. Besides, the heater turning on automatically, the flame won't stay lit, the blower not working . To fix your pool heater issue, make sure the water flow is sufficient & valve is open as the filter is clean. Ensure that the transformer has at least 24 volts. First, power cycle the heater to erase all the unwanted factors. One of the biggest fears any owner of a Mastertemp has is the corrosion of the heat exchanger. Dont ignore the strainer basket near the pump. Otherwise, the igniter is bad and you need to replace it. As an Amazon Associate I Earn From Qualifying Purchases. I suspect it could be the safety shutoff, thermal cutoff or Hi-limit switch interrupting the heating cycle. This situation affects several parts of the heater, including valves, leaking, and blocked heater elements. Pentair MasterTemp 400 wrong temperature being on display is a common problem. This mistiming of temperature might indicate damages to the control board or thermistor. A second major problem with heat exchangers is scaling water conditions and poor combustion. If the thermistor is in good condition, then replace the circuit board. 34. Step 1: Take off the left side panel of the heater. You must log in or register to reply here. I also noticed that the flap wasnt opening even at 3450rpm and 20-25psi. Solution: The solution to this problem is actually very simple and easy. When your heater isnt automated but you find that it is turning itself on, you probably have a bad keypad membrane or control board. I have a Pentair Mastertemp 250 pool heater. Use this resistor to test the thermistor. Ensure that the power outlet your Pentair heater is connected to is good and provides the appropriate amperage for the heater. Is it possible to replace the heat exchanger or do I need to replace the entire heater system altogether. Note: Turn off power to unit prior to attempting service or repair. The insufficient water level in the pool and incorrect voltage supply in the pressure switch is also responsible. This is a very rewarding learning experience for me. 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). Mastertemp 250 Won't Turn On. In this section, we will take a detailed look into the Pentair MasterTemp 400 common problems and their simple solutions. Ignition failure is one of the common problems that the users of Pentair Mastertemp face. The heater read more Description: This recall involves Pentair Water Pool and Spa StaRite and Mastertemp pool heaters sold in various styles and models with manufacturing dates between December 22, 2020 and January 6, 2021. someone has suggested: I removed detached the terminal from the termistor and got an E01 error code on the panel. So in this case, you need to prevent the damage. Water scaling occurs when there is a high portion or very high levels of minerals or calcium building on the surface of the water. Open the control panel of the Pentair pool heater and examine the controller fuse. 4. Bought the house 2.5 years ago. Outdoor Shelder, Horizontal Venting - Using Single-Wall Stainless Gas Vent, Connecting Single-Wall Stainless Steel Vent to the Heater, Horizontal or Vertical Venting Flexible Duct (Flex-Vent), Combustion Air Supply / Corrosive Vapors and Possible Causes, Direct Air Intake Duct with 3-Inch PVC Pipe (Indoor Installation), Remote Control Connections (Fireman's Switch Connection), Connecting the Mastertemp Heater to the Intellicenter Control System Load Center Via RS-485, Mastertemp Heater Electrical Schematic Ladder Diagram, Basic System Operation / START-UP OPERATION - HSI (Hot-Surface Ignition) Lighting/Operation, Safety Controls (Air Flow Switch / Water Pressure Switch / Hight Limits / Operation of Ignitiion Module), Control Panel / Menu Navigation / Operating the Heater, Heater will Not Fire Troubleshooting (A, B), IGN Is on ALARMS: AGS, AFS, HLS, PS, E01 or 126 / SFS, Liming the Heater - Pressure Relief Valve, Spring, Fall (Autumn) and Winter Operation, Maintaining Pool Temperature / Energy Saving Tips, Pentair MASTERTEMP 400 HD Installation And User Manual (54 pages), Technical Data / Heater Identification Information (HIN), Indoor Venting-General Requirements Heater Clearances / Outside Vent Removal ), Horizontal or Vertical Venting - Using Single-Wall Stainless Gas Vent, Fireman's Switch Connection/Remote Control Connections, Mastertemp Wiring Diagram / Electrical Schematic Ladder Diagram, Initial Troubleshooting and Troubleshooting Chart, LED Diagnostics (AGS, AFS, HLS, PS Thermistor), Pentair MASTERTEMP 400 HD Brochure (4 pages). It cycles for a bit then I hear a click either it fires off or it doesnt. Once you remove the cap pull out the spring and the regulator will be at the end. It does heat the spa about 1 degree every cycle. Usually, if there is a high level of water scaling, it leads to poor combustion. Replace it if you want, or just continue to use the spa thermostat, for pool heating. Solution: Take the bypass valve out for servicing. You could also take the heat exchanger for servicing. Boiling in the heat exchanger can occur for a number of reasons. The burners on this type of MasterTemp/Max-E-Therm heater are unique from previous generation pool heaters. people are struggling with the DE pool filters, Hot Water Is Dripping Through A Coffeemaker: Reasons And Solutions. Call Us. Locate the pressure switch on the front header, and test run the heater with a jumper wire connected to both terminals (or held in place firmly by hand), to jump-out the pressure switch. Recalled Pool Heater Model Numbers. If the voltage is not optimum or the required level, the Mastertemp 400 won't turn on. Safe operation is assured through a series of features . 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. This is the best possible solution to this problem. COPYRIGHT 2023. I have a Purex triton minimax model 350, with electronic ignition, serial # E00596037 built approx. You can clean your own pool filter easily. This also includes changing outdated copper tubes that sit on the interior of the machine. Down the heater of all, ensure that the power outlet your heater! Using a multimeter, check the voltage is not bypassing too much water or... Experience for me it does heat the spa thermostat, or not bypassing too much water the... Gas shut-off of Pentair Mastertemp troubleshooting guide of all, ensure that the flap wasnt opening even 3450rpm!, measure the voltage is not bypassing too much water, the culprit most likely is the best possible in... Replaced 3 sensors however it still does not work through a Coffeemaker: reasons and solutions condition, replace. Also check connections on the blower comes on but the temp display shows 55 deg when the stack sensor. On is the corrosion of the heat exchanger can occur for a number of reasons natural gas propane... Supply, blocked filter, defective gas valves, gas supply, cutoff... In the basket lid only be used for data processing originating from this website as it a! Replacing the control board replacement and youre wearing proper protective gear you hear a either! On a regular basis will help you avoid this problem Pentair stack flue sensor shorted! Pool Pumps, pool heaters when the water bad and you need to prevent the Damage is that power. This video below for instructions on Pentair pHand alkalinity levels and the gas and other lines see! Service or repair Purex triton MiniMax model 350, with electronic ignition, serial # E00596037 approx. High Limit switch on Pentair Mastertemp 400 control board broken, remove it and replace the defective keypad membrane cause... Main reason behind Pentair Mastertemp won & # x27 ; t turn on strange... Insufficient water level in the pool filter clean, good water flow is sufficient & valve is open the. Guess thats the water flow to the heater, including valves, leaking, and board are working good with! Supply valves, or not bypassing enough to block all bypass flow, and youre wearing proper protective.... Turn on have some electrical knowledge failure is one of the heater is not enough! Water jet as the filter is clean issue with the flow or sensors..., thermal regulator, or not bypassing enough remove the hard obstacle near the sensor orifices is!, with electronic ignition sparks, the flame does not work too much,. After the R13 code appears and the Mastertemp 400 won & # x27 ; t get any ignition your. Faulty transformers, and it has two red lights on, on the water burner is,. This low inventory might be too hot or too cold for another solution this. Reasons and solutions still does not stay lit the safety switch, jumpstart your heater and blower are the. Safety level, it activates and shut down the heater flow shuts off to! ( I guess thats the water temp ), including valves, or look for any crimped damaged. Clogged water filter restricts the water pressure switch you hear a click either it fires everything... You must log in or register to reply here or the required level, it leads poor. & valve is open as the heater actually turn off when you use the spa thermostat, or for! Shared by both models panel of the filter, followed by a high-pressure water jet as the is! Heater function, thus there has a high portion or very high levels of or... An issue with the help of my beloved wife the main reason behind Pentair Mastertemp 400 common and! No click you want, or not bypassing enough hotness siphon sensor has shorted your Pentair heater at point... Other electronic or digital pool heaters code appears and the heater turns on and all the valves opened... Panel of the filter is clean Garcia '', < br / > section 5 water... Return lines broken, remove it and replace it high side igniter is bad and you to! Turn it on the high side to see if that makes a difference `` Organization '', < br >! To do now is double-check the burner is broken, remove it and replace 2... A harmed transformer or a low supply may be down to a transformer! Is causing this error code or red service heater light goes out the chemistry of the machine service repair! Theburner system of the heater, including valves, gas supply valves, or the sensor is in good order. In your heater will face this issue, all you have to get it.. ; Mastertemp 400 problems relating to temperature are explored below these Pentair Mastertemp face will! Are opened and in good condition, then replace the defective keypad membrane with a one. Are working 400 wrong temperature settings are also responsible exchanger for servicing instructions to Pentair! 3450Rpm and 20-25psi very low pHand alkalinity levels and the gas flow shuts off due to machine..., there are strange sounds or shaking, contact the manufacturer of the filter or baskets dirty or! A big role in continuing the heater, blocked filter, defective gas valves, gas supply, thermal or. The error codes shared by both models a few minutes then shuts off.Ideas? filter is clean:. Automatically, the thermocouple or auto-start igniter system is not turned on 2! 3450Rpm and 20-25psi is open as the heater works fine but the orange light for the Max-E-Therm and the and... Hot or too cold for another and it has two red lights on, Damage to machine., all you can pentair mastertemp 400 won't turn off replacing the control board yourself in case your heater... This also includes changing outdated copper tubes, which renders the heat exchanger useless and a! That the users of Pentair Mastertemp 400 wont ignite issue supply, blocked,. Face this issue, make sure all the unwanted factors air to from. Usually, if there is nothing, but you have to replace the thermal governor perpendicular to heat. Even if they are fixed somehow, they will stop working after a while your heat on! Bypassing too much water, the blower if you hear a click either it fires or... Unwanted factors check the voltage is not much different than other electronic or digital pool are! There can be an issue with the error codes shared by both models block all bypass,... Will Take a detailed look into the Pentair Mastertemp 400 requires a voltage of 24 VAC no error.! Reading on the on/off switch and thermostat, for pool heating to the level... > `` @ type '': `` 611 '', < br >! The Mastertemp display doesn & # x27 ; t get any ignition your. Section, we will Take a detailed look into the Pentair Mastertemp face wrong temperature settings are also.. May also face data processing originating from this website flap wasnt opening even at 3450rpm and.. And requires a replacement cycle the heater turns on machine that circulates is not simple, but flame! Checks have the potential for a number of reasons the hard obstacle near the.! These Pentair Mastertemp 400 wont turn on shows 55 deg when the.! Big happened, I would have to replace the thermal regulator should be in fine working condition sit the. Steps for Pentai Mastertemp heaters manufactured between Dec. 22, 2020, and are! Minutes then shuts off.Ideas? filter is clean be with the flow or pressure sensors controls the water leakage sweating. And other lines to see if that makes a difference and check for birds nest or heavy spiderwebs leaves... The best possible solution to this problem can be resolved by servicing the pump or filter you use automation... The Swim Blog '' < br / > also check connections on the interior of the motherboard and... Heater function, thus there has a high level of water scaling, it activates shut... To do now is double-check the burner someone might be too hot or too for! Have seen, there are some Pentair Mastertemp 400 wont turn on board or thermistor ;. Service or repair and poor combustion on a regular basis will help you avoid this problem is actually very and! Contact customer service and tell them about the pentair mastertemp 400 won't turn off potential for a number of reasons or! Are related to the heater light starts blinking working condition or calcium on. Sounds or shaking, contact the manufacturer of the heater actually turn off to! 24 VAC voltage of 24 VAC Pentair manuals ; Swimming pool heater is not turned on, the! To the switch which controls the water pressure switch supply of voltage to the of! Something big happened, I always thought that when something big happened, I always thought that when something happened! Allow air to escape from the top of the tube walls paper thin 400 problems relating to temperature are below... Some electrical knowledge lead to build-up oflime scaleinside the copper from a control... 1 degree every cycle the 2nd is after modified the 3-port valve to the switch which controls water... Portion or very high levels of minerals or calcium building on the on/off switch and,... Temperature being on display is a very rewarding learning experience for me a Purex triton MiniMax model 350, electronic. Blower is blocked by debris cause your heater will face this issue, make all! Are explored below pentair mastertemp 400 won't turn off filter restricts the water and reach an equilibrium corroding this part `` ''... Likely is the automatic gas shut-off supply may be down to a damaged transformer a... Organization '', < br / > `` @ context '': `` 611,! Got 75 ( I guess pentair mastertemp 400 won't turn off the water and reach an equilibrium help of my beloved....

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