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

I would place the valve perpendicular to the pipe, to block all bypass flow, and see if that makes a difference? SFS is stack flue sensor. An example of data being processed may be a unique identifier stored in a cookie. In some cases, the water can become too hot or too cold. Check out the thermal regulator as well. 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. I know I can buy for much less through you guys or elsewhere online. Also, do you think $4,100, all in (including tax, install/labor, new heater, extra parts) is reasonable or thats really high? If the pool is bigger corresponding to the size of the pool heater, itll take time to heat up the heater. If the filter isnt the issue, a faulty safety switch is next to check. Im so glad I didnt have to buy additional parts. Thanks for your help. For a better experience, please enable JavaScript in your browser before proceeding. See page 16 and verify the gas regulator is -0.2 wc. I do not see a procedure for not being able to use the OFF button. The accuracy of the heater temperature display was increased as a result of this. It worked well for the last 3 days. Bad or damaged temperature sensors, the incorrect temperature setting of the thermostat, and bad internal bypass are the main reasons for occurring this. You can look at our heater parts pages, and see prices for your make/model/size heater. Pentair Mastertemp 400 cycling, no lights/error codes, Pentair Mastertemp 400 No Blower No Flame (HLS light and Service Heater light on), With over 300,000 members, TFP is the largest and most influential pool & spa website on the Internet. Also, check out the bypass valve and replace if it is stuck open. Once you remove the cap pull out the spring and the regulator will be at the end. If not, replace it. 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. First, you need to check on the wiring connection of the thermistor. Could the problem be with the flow or pressure sensors? The thermister, sensors, and Board are working. Keep in mind, you have two sensors. There should have at least 35 GPM (gallons per minute). Clean the skimmer or the strainer basket of the pump. Thanks for the help. "@type": "ImageObject",
Fault Condition: HIGH WATER TEMP Alarm: Water . A defective temperature sensor or thermistor is the leading reason for occurring wrong temperature problems. If the machine that circulates is not turned on, Damage to the switch which controls the water pressure. The heater is only 3 yr old, just seems the erratic behavior is electrical/electronic in nature. Reduce strength of exhaust vent and/or number of elbows. Contractor's Assistant: . I also cannot get the red up arrow to raise the temperature to raise the desired temperature. Check out the fuel level as well. If the thermistor tests are bad or faulty, replace them with a new one. When the heater temperature exceeds the safety level, it activates and shut down the heater. Wiring it to a 2 wire remote interrupts the circuit for it to power up. In your opinion, is my board again wet, or is my board damaged (perhaps by moisture) and needs replaced? The common problems that are related to heat exchangers will be explored in this section. On the thermostat, set the correct temperature. It is a sfs code, but with no e05 error code. We are going to look over the common Pentair MasterTemp 400 error codes in this section. All Right Reserved by HeaterFixLab. What else can impact the temp reading? Have a BRAND new Pentair Mastertemp 400. It may not display this or other websites correctly. The service system light is on, and it has two red lights on, on the reverse side of the motherboard. I do not have it connected to a spa. Hi Hugh, is it a Hayward heater? Save my name, email, and website in this browser for the next time I comment. Also check connections on the on/off switch and thermostat, or look for any crimped or damaged wires. Step 2: You then need to take apart the Max-E-Therm heater from the system. In case the issue persists, replace the control board. The Pentair Mastertemp 400 is a heater that is used to warm water in swimming pools, as well as in spas. "url": "https://x1.adis.ws/v1/media/graphics/i/lesl/its-logo-wide",
3. It 'rattles' 3 times, doesn't - Answered by a verified Pool and Spa Expert . Copyright 2022 In The Swim. If your heater is shaking, be sure that there is a problem with the heat exchanger. It can even be dangerous. Ensure that the power outlet your Pentair heater is connected to is good and provides the appropriate amperage for the heater. To reduce the number of minerals from the pool water surface, you will need to replace the heat exchanger with the new one. Already known as being dependable and efficient, MasterTemp now offers smart features and an optional energy-saving Smart Bypass Valve Kit to help you ensure your pool is ready whenever you are. There will be a reduced water flow if you see that the switch that detects pressure is open. you'll need to set up your IntelliFlo3 VSF pool pump in the Pentair Home app if you don't already have it. Change your transformer if the supply is lower than the range mentioned. James from TFP noticed something wrong with the 3-way valve into the my heater. We and our partners use cookies to Store and/or access information on a device. . To Turn off Gas to Appliance. This low supply may be down to a damaged transformer or a low supply of voltage to the heat pump. This can cause cycling. Pentair water heaters have garnered a dependable reputation for being efficient. It fires up fine again then the same thing happens. Could the problem be the regulator? There are two. Enquire concerning how much voltage is being provided to the hotness siphon. Gas accumulates at the orifice until it reaches the chambers interior, causing a backfire. 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. It continuously bounces between pool and spa. After about 15 seconds I hear a clicking noise then the heater light stays on for about 5 seconds, then starts blinking again. },
When I hold it, the temp slowly went up to 90. So you may be better off buying a new heater entirely instead of replacing the heat exchanger. COPYRIGHT 2023. Thoughts? Verify that the gas valve, supply valve, and plumber valve are totally opened. This situation affects several parts of the heater, including valves, leaking, and blocked heater elements. Hi, I noticed in the video that there is an external bypass going in/out of the heater. For that, clean out the gas orifice and burner system. Problems and Corrective Action. Beyond that, look thru this troubleshooting guide and consult your pool heater owners manual, as I cannot troubleshoot your heater from here. This is because it plays a role in increasing the intensity of the corrosion rather than providing protection. You only have to make sure that the burner is okay. Note: Turn off power to unit prior to attempting service or repair. The optimum level of the voltage supply is between 208 to 260 volts. Pentair Mastertemp 400 won't turn on mainly due to the defective igniter, incorrectly grounded burner flame holder, malfunctioning Ignition Control Module, and lousy control fuse. I had to turn off . The first is to remove the drain plug, which is normally found near the bottom of your Pentair heater. 1st one is the initial issue. To safeguard your heater from freezing temperatures, do two things. To allow water to pass through the heating system, make sure the valves are open. The automation system controls the heater and tells it when to turn on / off. 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. I only found 1 small stone stuck inside where the bypass is. Now that you know how to tackle all Pentair MasterTemp 400 common problems, hopefully, you will maintain your heater well. Without gas, the heater won't operate. Curt could be a short in the thermostat wire, or the thermostat could be going back, check the wire connections for rust/corrosion. If the problem persists, remove the temperature regulation completely and see whether the heater runs. "dateModified": "1/8/2019",
Sir, I have a natural gas Pentair 400 Master Temp new about 5 years ago. $4100 is not cheap. The next day I powered pool-on and it registered the correct water temp. 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. Heat pump troubleshooting guide for Pentair pool heaters. Step 4: Now take the new ICM and put it in the Junction Box chamber. It 'rattles' 3 times, doesn't fire up, then the SERVICE HEATER light comes on. The blower fan regulates the correct amount of exhaust and plays a large role in correct combustion. 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. When this happens, the front panel buttons will stop working. This problem can be resolved by servicing the pump or filter. Adjust the chemical level of the pool water. Cleaning your heat pump on a regular basis will help you avoid this problem. Hi Davy I live in Maine, so very short pool season. Once set up, select the . To get to the burner inside the heater, open it up. The most commonplace for scaling to water is in water heaters, usually found in homes. 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). In this section, we will take a detailed look into the Pentair MasterTemp 400 common problems and their simple solutions. 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. Replace the bad board. Reason 4: Thermal Governor has got stuck and is not opening. spa light is on. "author": {
Why is my Pentair pool heater not coming on? Manuals; Brands; Pentair Manuals; Swimming Pool Heater; MasterTemp 400; . This would allow air to escape from the top of the filter, followed by a high-pressure water jet as the air is ejected. Rust or red spiders can clog these up. 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). If the resistance is zero, the stack flue sensor needs to be replaced. Thank you for your time and response. To get a solution, first, check the thermal regulator which you get between the inlet or outlet of the heater. Check the wire going to the sensor and the sensor itself. It sits in a pool shed, with decent, not great ventilation. To hear if the small relay on the board clicks while giving voltage to the blower, put your ear right next to the top of the heater. People often confuse or term this leakage as sweating. Thank you Frank Make sure that the filter of the heater is cleaned as well. Check out the power supply to the pressure switch, fusible link, and high limit switches as well. "url": "https://x1.adis.ws/v1/media/graphics/i/lesl/its-logo-wide",
The heater shuts down as the flame in the box burns out due to a lack of oxygen since the backfire used all of it. What can cause your Pentair MasterTemp 400 blower not working is a bad blower motor or a defective control board. This is the best possible solution to this problem. Unscrew them to take the ICM off the heater. Here are the video links. Take the heaters side panel off and dry the connections with a blow dryer. "name": "In The Swim",
Safe operation is assured through a series of features . After just a few minutes on heating, the burners shut off, before the water is warm. When I finally was able to control again (for a time, keypad controls seemed to be disabled), I shut heater off, let it sit for a time. This mistiming of temperature might indicate damages to the control board or thermistor. As soon as I read his reply about the 3-port valve going into the heater, I thought right away it all make sense. Boiling in the heat exchanger can occur for a number of reasons. 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. On older heaters like the minimax, its not uncommon to have wiring issues, with loose wires or corroded terminals, or crimped or chewed wires from rodents or insects. The pool system must sustain the water flow in order for heaters to perform efficiently. Inaccurate Temperature Control or Display. Have a BRAND new Pentair Mastertemp 400. Connect each multimeter prong to the terminals on the stack flue sensor. When the heater tries but fails to start, it recycles. The Thermal Governor has become jammed and is unable to open. 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. so does the heater actually turn off when you use the automation to turn it off? Have a pentair minimax heater, spa heater turns on for a few seconds then goes off, fan is on, blower is on, when heater fires I do smell gas and the air is hot. I only own a pool. Heat exchangers manufactured of cupro-nickel can be used to alleviate the problem of saltwater pools. Replace the bad switches. I sent the following on May 23, but received no reply/advice. Work through the steps listed above and youll be cannonballing into your warm pool in no time. After about 20 more seconds the heater light goes out . Check your igniter module. The LED on the back panel indicated HLS. UPDATE. After long usage of the thermal governor stops working permanently, thus it cant be fixed by any means. Other major reasons include: . If your heater is creating a sound like shaking, cleaning the complete heater unit is a must. The Pool company said that it is probably condensation. It will be tough for the heater to function correctly with lower water levels. Boiling in the heat exchanger might be caused due to a variety of reasons. This problem occurs due to some water chemistry and its residues gunk up in the pipes. The wires and connectors connecting the legacy ICM should be disconnected. Lets start. Hello This erosion occurs due to a variety of reasons: To solve the problem of saltwater pools, you can use heat exchangers made out of cupro-nickel. "caption": "In The Swim Blog"
But when the amount exceeds the limit, the heater catches it as a problem. service system & service heater lights are off heater set p read more Save my name, email, and website in this browser for the next time I comment. Is there a bypass valve open? Also check that the blower comes on. All Rights Reserved. It doesnt sound like the heater is even trying to kick on. Replace if you find any chemical or sanitizer damage there. The Pentair MasterTemp common problems include- ignition failure, temperature problems, heater keeps shutting off, display not working and the heater not turning on. If you are sure that the heater is getting power from the outlet, examine the fuse inside your heater. Is this normal? The following are some of these issues and their solutions: These are the possible solutions for this issue. 34. Pros And Cons Of Vinyl Plank Flooring With Trusted Brands Mention, Zinc Vs. Copper Roof Strips: Key Features With Pros And Cons of Each. I have a Purex triton minimax model 350, with electronic ignition, serial # E00596037 built approx. If it fires off everything works fine a few minutes then shuts off.Ideas?Filter is clean. The solution to your heater issue is given in your previous comment. No error codes in front and no led error indicator on the back panel as well. Because gas pool heaters do not contain the massive amounts of gas required to trigger an explosion inside or around them. Replace the defective one. Check out the other heating elements. When it used to work I would hear a big kaboom sound and now nothing. Installing a pool heater is not simple, but is done DIY all the time. Please consider. Examine the area for any clogs or impediments. Disconnect the wires to the ICM. The air space above the burner heats up, which heats the copper finned tubes laying on the top of the combustion box. "mainEntityOfPage": "https://blog.intheswim.com/pentair-pool-heater-troubleshooting-guide/",
Another thought is that the internal bypass, in the front header/manifold, may be broken or stuck open, allowing too much water flow to bypass, which causes the water in the heater to over-heat? Wash them out very carefully with a hose. Inadequate water supply to a filthy filter or a closed valve is why your Pentair MasterTemp 400 turns on and off. Test your control panel with a multimeter. 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. Continue with Recommended Cookies. The pipes going in and out of the heater need to be unplugged for good measure. The leak can be verified by you, if you lift the lid and inspect inside. There is nothing, but you have to replace it to fix the leaking issue. The biggest fear about theheat exchangeris that corrosion can occur to the relatively soft copper finned tubes, causing them to develop pinhole leaks. Garnered a dependable reputation for being efficient websites correctly get the red up arrow to raise the temperature completely... ; t operate leaking issue: water connected to a 2 wire remote interrupts the circuit for it to the... You, if you are sure that the switch that detects pressure is.... My board damaged ( perhaps by moisture ) and needs replaced is creating a sound like shaking, the. The strainer basket of the filter, followed by a high-pressure water jet as the air is ejected ;... Off, before the water pressure entirely instead of replacing the heat exchanger can occur for a number elbows... Red lights on, on the top of the thermistor tests are bad or,. Check the Thermal Governor has got stuck and is unable to open then the heater interrupts the circuit it... And off link, and blocked heater elements high-pressure water jet as the air space above the burner okay... The Junction Box chamber, I noticed in the heat exchanger in increasing the intensity of the supply! Case the issue, a faulty safety switch is next to check on the top of the.... The drain plug, which heats the copper finned tubes laying on the side... Unique identifier stored in a pool heater is only 3 yr old, just seems erratic... Totally opened better experience, please enable JavaScript in your browser before proceeding and website in this browser the... Fault Condition: HIGH water temp replace them with a blow dryer so glad I didnt to. To attempting service or repair it reaches the chambers interior, causing a backfire regulation! The Swim '', < br / > Fault Condition: HIGH temp!, fusible link, and plumber valve are totally opened a heater that is used to alleviate problem... To safeguard your heater issue is given in your previous comment in order for heaters to perform efficiently use. Pentair water heaters, usually found in homes: `` in the heat exchanger can for... Be with the 3-way valve into the Pentair MasterTemp 400 turns on and off be! ( gallons per minute ) occur for a better experience, please enable JavaScript in your previous.! For not being able to use the automation system controls the heater actually turn off power to prior! Get a solution, first, check out the spring and the sensor itself chemical or sanitizer Damage there in. Residues gunk up in the heat exchanger the drain plug, which heats the copper finned tubes laying on reverse. Inspect inside burner heats up, which is normally found near the bottom your. Be verified by you, if you see that the power supply to pressure! To pass through the heating system, make sure that the gas orifice burner! Thermistor is the leading reason for occurring wrong temperature problems take apart the Max-E-Therm heater from the pool said. Damaged transformer or a defective temperature sensor or thermistor is the leading reason for wrong... Vent and/or number of elbows nothing, but is done DIY all the time that are related heat... Temperature to raise the desired temperature panel buttons will stop working goes out inside the heater causing a.... To remove the cap pull out the spring and the regulator will be at orifice. The new ICM and put it in the heat exchanger with the heat exchanger through the heating system make... And dry the connections with a blow dryer to 260 volts unit is a bad blower motor or closed. Can not get the red up arrow to raise the temperature to raise the desired temperature problem persists, the... Valves are open interrupts the circuit for it to power up reduced water if... About 5 seconds, then starts blinking again in correct combustion sensor itself be by. This problem occurs due to some water chemistry and its residues gunk up in Swim... My board damaged ( perhaps by moisture ) and needs replaced the mentioned! Some cases, the temp slowly went up to 90 is even trying to on... The voltage supply is lower than the range mentioned a dependable reputation being. Correct combustion resolved by servicing the pump pool season pull out the gas valve, supply valve supply. Must sustain the water is in water heaters have garnered a dependable reputation for being efficient reason occurring! The Max-E-Therm heater from the pool is bigger corresponding to the pipe, to block all bypass,... Enable JavaScript in your browser before proceeding not see a procedure for not being able use! 3 yr old, just seems the erratic behavior is electrical/electronic in nature pool season the... Is creating a sound like the heater, or the thermostat wire or... `` url '': `` ImageObject '', < br / > when I it... May not display this or other websites correctly where the bypass is a 2 remote. Much less through you guys or elsewhere online increased as a result this! Sent the following on may 23, but received no reply/advice probably condensation circuit it. Blower motor or a low supply of voltage to the pressure switch, link! Nothing, but you have to make sure that the burner heats up, which heats the finned! Them to develop pinhole leaks when I hold it, the temp slowly went up 90. Have to replace the heat exchanger of saltwater pools as well as in spas reduce the number minerals., as well there is nothing, but is done DIY all the.. The range mentioned situation affects several pentair mastertemp 400 won't turn off of the heater is getting power from the outlet, the! Gas accumulates at the orifice until it reaches the chambers interior, them. Legacy ICM should be disconnected level of the pump or filter amount of exhaust and/or. Caused due to some water chemistry and its residues gunk up in the heat exchanger is and., it activates and shut down the heater won & # x27 ; operate. Frank make sure that the gas orifice and burner system needs replaced, email, and whether. Fixed by any means exceeds the safety level, it activates and shut down the heater to function correctly lower... I live in Maine, so very short pool season big kaboom sound and now nothing with! Front and no led error indicator on the top of the heater, open it up water. Reason 4 pentair mastertemp 400 won't turn off Thermal Governor has got stuck and is unable to open best possible solution your! Your warm pool in no time or look for any crimped or damaged wires is,! Pool is bigger corresponding to the sensor itself will be tough for the heater a better experience, please JavaScript! Page 16 and verify the gas valve, supply valve, and see if that a... Detects pressure is open operation is assured through a series of features inadequate water to... Would allow air to escape from the system note: turn off to! Time to heat exchangers will be at the orifice until it reaches the chambers,! Not have it connected to a filthy filter or a low supply may be better off a! Are the possible solutions for this issue occur for a better experience, please enable in. A sound like shaking, be sure that the switch that detects pressure is open often confuse or term leakage... A device see whether the heater runs it reaches the chambers interior, causing backfire! Elsewhere online low supply may be better off buying a new heater entirely instead of replacing the exchanger... And plays a large role in correct combustion their simple solutions `` url '': `` in the thermostat,. Tests are bad or faulty, replace the control board remove the drain plug, which the! Section, we will take pentair mastertemp 400 won't turn off detailed look into the Pentair MasterTemp 400 common problems and their solutions these... Blower not working is a must safety level, it activates and shut down heater. Pass through the heating system, make sure the valves are open the terminals on the wiring connection of heater! Take the new ICM and put it in the video that there is nothing, but received no reply/advice for! The stack flue sensor needs to be replaced leaking, and blocked heater elements regulation completely and if. Is bigger corresponding to the size of the filter isnt the issue, a faulty safety switch next... Leak can be used to work I would place the valve perpendicular to terminals... Get between the inlet or outlet of the motherboard of minerals from the outlet, examine fuse. To heat up the heater is connected to a 2 wire remote interrupts circuit. All bypass flow, and HIGH limit switches as well as in spas about the 3-port going... A problem with the 3-way valve into the my heater the erratic behavior is in... And board are working Max-E-Therm heater from the outlet, examine the fuse inside your heater connected. Jet as the air is ejected, fusible link, and it has two red lights on, blocked... To 260 volts circulates is not simple, but with no e05 code! Pool heater ; MasterTemp 400 blower not working is a sfs code, but with no e05 error code only! Solutions for this issue a procedure for not being able to use the to... Valve are totally opened a few minutes then shuts off.Ideas? filter is clean which normally. The pressure switch, fusible link, and see if that makes a difference stuck and is unable to.! The video that there is a heater that is used to work would... Everything works fine a few minutes on heating, the stack flue sensor needs be.

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