Follow the below instructions to resolvePentair Mastertemp 400 keeps shutting off and on issue: Knocking sounds occurs due to the clogging in the skimmer or the strainer basket of the pump or the pool. We are a registered 501(c)3 non-profit that is funded by user donations. Replace the bad ones. Traveler, food lover, interior designer, and blogger. Step 4: Now take the new ICM and put it in the Junction Box chamber. The reason is simple: TFPC (Trouble Free Pool Care) is a methodology, not a product that you must purchase. If the pool is bigger corresponding to the size of the pool heater, itll take time to heat up the heater. SOURCE: Pentair MasterTemp 400 Heater Will run fine for. This also includes replacing any worn-out copper tubes on the machines interior. Cleaning your heat pump on a regular basis will help you avoid this problem. Heater will not start. Unfortunately, the only way to solve this issue is to get a new heat exchanger. If your heater is shaking, be sure that there is a problem with the heat exchanger. There will be a reduced water flow if you see that the switch that detects pressure is open. Edit. you won't get any ignition in your heater. We are always ready for your assistance. If it doesnt work, contact the Pentair customer support center. Follow the below instructions to resolve Pentair Mastertemp 400 wont ignite issue. 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. Take the heaters side panel off and dry the connections with a blow dryer. Can I turn the alarm off on the Connected Water Softener from the Pentair Home app? This is accessed thru the end cap, two bolts on the side of the header. I have a Purex triton minimax model 350, with electronic ignition, serial # E00596037 built approx. You may safeguard your equipment from seawater erosion by using cupro-nickel. I was able to power heater off, then pool-on, and I could see 78 deg water temp registered, and with 80 deg setpoint, burner kicked on ok. 10 minutes later I went out to check, and Ad0 was on the screen, and I can not poweroff (heater-off button not responding), but behind the scenes I think it is responding to temp-up or temp-down command, to call for heat and burner, but the screen remains at Ad0. It worked well as usual, heated water to 85F as commanded. It doesnt sound like the heater is even trying to kick on. 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. This is because it plays a role in increasing the intensity of the corrosion rather than providing protection. Replace if there have any defects. If your Pentair Mastertemp 400 wont turn on, for sure, the heater is facing a power supply degradation problem from the source. When you say the exhaust pipe, I guess you mean the pipe carrying water out of the heater, or leaking on the front manifold? When I turn it on the blower comes on as well as the heater light starts blinking. Its a fun combination of plumbing, wiring and gas. in 1995. Be sure water flow is good (inspect internal bypass assy). Pinhole leaks develop on the copper tubes that are on the interior of the machine. 4. 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.
Cupro Nickelheat exchangers can be used for much greater resistance to the effects of salt water corrosion. Otherwise, the igniter is bad and you need to replace it. Clean up all the flue sensor orifices to ensure there is no grime on them. 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? First, locate the thermistor of your pool heater. If replacing the keypad membrane hasnt stopped your heater from turning on automatically, you need to call customer service for a new control board. I also noticed that I couldnt completely open the valve on the return lines. If the fact is related to the safety switch, jumpstart your heater and replace the bad switches. Thank you for your time and response. My heater also powers up, displays lights, without anyone touching it. But if the scaling is of a high level, it becomes detrimental to the machine. Also, closed valve, fluctuating in power supply, defective pressure sensor, imbalanced pool water chemical levels, deterioration of the heat exchanger, faulty thermal regulator, or high limit switch are responsible for causing such issues. Check the pumps strainer basket if the filter has been cleaned and the PSI is not high. The heater read more Pros And Cons Of Vinyl Plank Flooring With Trusted Brands Mention, Zinc Vs. Copper Roof Strips: Key Features With Pros And Cons of Each. Water scaling occurs when there is a high portion or very high levels of minerals or calcium building on the surface of the water. If you deem it necessary, then clean the entire filter system. Any assistance would be helpful or recommend a competent technician in the San Diego, CA area would be helpful. Education Center. As we have seen, there are some Pentair Mastertemp 400 common problems that may also face. Clean the clogged water filter to ensure a fluent water flow. The heater manifold, and also the water flow sensor, and the Thermistor connections may be getting wet. Troubleshooting your Pentair pool heater doesnt have to be a time-consuming hassle! 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. Glitches in the power supply are the root reason behind this. Thermal Governors stop working primarily due to years of usage. Replace in case necessary. In short the system keeps automatically turning the temp up on its own. Check through it. Thermal Governors are used to maneuvering the cooling fans that can either be on or off. "datePublished": "1/8/2019",
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. Traditional gas heaters ignite horizontal burners at the bottom of a square combustion box. For a better experience, please enable JavaScript in your browser before proceeding. Pentair Mastertemp 400 Heater Not Turning On, 2. After every one to three months or when you get 510 PSI of pressure on the air filter, your Pentair MasterTemp 400 D.E. Check the pH of the water and make sure it is balanced. Without gas, the heater won't operate. It does heat the spa about 1 degree every cycle. In case the issue persists, replace the control board. 13 years ago. Test your control board with a multimeter. There are two. 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. 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. Solution: Inspect the heater's gas valve, and check that it's set to the "OPEN" position. The thermister, sensors, and Board are working. "primaryImageOfPage": {
Ensure that the pool filter is clean and clog-free. In some cases, the water can become too hot or too cold. Our Pentair pool heater troubleshooting guide will have your heater back in business in no time. It will be tough for the heater to function correctly with lower water levels. I have a Pentair 400 mastertemp propane spa heater. No code is present. First, power cycle the heater to erase all the unwanted factors. So, I opened the 3-port valve and adjusted it where the 2 return lines are fully open. So, here we will look at some issues and their solutions. I think I am commanding only a 1 deg increase in temp, so although I can not see anything but Ad0 I will wait and see if the burner cycles down as the water temp warms the 1 deg or so. Also, at least once a year, you should disassemble and clean the D.E. Your Pentair MasterTemp 400 display not working generally means that your unit is not getting power, you have a blown glass fuse, or a defective control board. The Pentair Mastertemp 400 is a heater that is used to warm water in swimming pools, as well as in spas. Recalled Pool Heater Model Numbers. Continue with Recommended Cookies. You are using an out of date browser. 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 wiring diagram is given below for your reference. Turn on the resistance testing mode on a multimeter. 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. It 'rattles' 3 times, doesn't - Answered by a verified Pool and Spa Expert . Possible Cause: Gas supply valve. Hello, I have a Pentair Mastertemp 400 that starts heating the spa but then shuts off and on every few minutes. 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. Check for stuck objects, such as worms, dirt, lint traps, etc. 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. Replace the defective parts. Take a closer look at where the water originates. It can even be dangerous. All Rights Reserved. Bought the house 2.5 years ago. But, need someone to do the work, etcso, probably need to order it through this small, local company, right. Verify the control board is in well-working condition. Combustion appears normal, but the flame does not stay lit. Unscrew them to take the ICM off the heater. Use a heat exchanger made of cupro-nickel to resist corrosion. This problem can be resolved by servicing the pump or filter. In case the wiring is good, you probably have a thermistor that needs replacing. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. "url": "https://blog.intheswim.com/"
Hello , This is an inactive thread. Read our Pentair MasterTemp 400 troubleshooting guide to fix your heater ASAP. See if the igniter fires when you turn on the heater. . "name": "In The Swim",
Please consider. Now, check out the voltage supply to the control board. I dont see my trouble addressed. I have replaced the Stack sensor thinking that it was the problem. When I hold it, the temp slowly went up to 90. You can also check it by seeing if it opens up when you put it in water above 120 degrees. Pentair water heaters have garnered a dependable reputation for being efficient. I can get it to go Off and display panel to go blank by manual turning off the AC power at the circuit breaker panel. The following are some of these issues and their solutions: These are the possible solutions for this issue. If so where is it located and how much does it cost. 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. Inadequate water supply to a filthy filter or a closed valve is why your Pentair MasterTemp 400 turns on and off. Check out the power of the transformer whether its all good or not. You could also take the heat exchanger for servicing. Articles and resources for swimming pool owners and DIYers. "@type": "ImageObject",
When the heater temperature exceeds the safety level, it activates and shut down the heater. I love gardening a lot! Disconnect the wires to the ICM. "@type": "BlogPosting",
Make sure that the filter of the heater is cleaned as well. Heater will not turn off and a 5F code with a flashing 1. For that, clean out the gas orifice and burner system. Search. Some other problems that Pentair Mastertemp 400 pool heater users face are the blower not working, not heating, not igniting, not turning on, knocking noise, and cycles OFF/ON incessantly. To accomplish this, you must: As you turn on the heater, the error code should no longer be on display. Learn more, Facebook II Twitter II Pinterest II Linkedin. We can expect that whatever the issue will persist, you will easily fix it by following our guide. 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. Replace the defective one. Test your fill water too. Thanks for your help. 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. As of now, Im at the mercy of my pool company? We have a Pentair 300 for both spa and pool heating. 4. },
The accumulation of minerals on the surfaces of the pipes acts as a barrier against corrosion. I just never thought something was wrong with it because the company servicing my pool and heater had it setup like that. And if the heayer shuts off, the gas valve is ok. Then check the control board & fix it. Find a Dealer. 1st one is the initial issue. 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. Other reasons why the heater is not turning on include: Faulty igniter If it has a substantially lower calcium level and your pool is over 250 ppm hardness, you will need to draw off water from the pool and refill. Clean the skimmer or the strainer basket of the pump. Solution: Servicing on the pump or on the filter will fix this issue. (Be sure that it is leaking and not just condensating). There should have at least 35 GPM (gallons per minute). Hi Check the thermal regulator kit, to be sure that it is not bypassing too much water, or not bypassing enough. Wiring it to a 2 wire remote interrupts the circuit for it to power up. We have a new Pentair Mastertemp 400 unit that we need direction on correctly setting the temperature. Pentair MasterTemp 400 error code E06 is displayed on your LED screen when the stack flue sensor has shorted. Hi, I noticed in the video that there is an external bypass going in/out of the heater. Top 3 pool pump problems, of course! Check out the power supply to the pressure switch, fusible link, and high limit switches as well. Hi, if the heater is less than ten years old, it may make sense to replace the heat exchanger. You may require cleaning your filter this way twice a year instead, depending on consumption (particularly if your pool is open all year). Home / Pool Repairs / Equipment Repairs / Pentair Pool Heater Troubleshooting Guide. They will help you out with replacing your control board. "width": "611",
Check the wire going to the sensor and the sensor itself. Use this resistor to test the thermistor. I have a pentagram minimal plus heater and when I turn it on it stays on at low thermostat setting but when I try and increase it the heater kicks off and then wont come back on. These problems could lead to build-up oflime scaleinside the copper tubes, which renders the heat exchanger useless and requires a replacement. If it is set to 104 out there and it says 104 while your EasyTouch says 98, you have a bad water sensor on the ET. Clean out the filter first to resolve the low water flow issue. Using a multimeter, check the voltage measurement on the pressure switch. I only found 1 small stone stuck inside where the bypass is. The Mastertemp 400 requires a voltage of 24 VAC. Hello, I have a Pentair Mastertemp 400 that starts heating the spa but then shuts off and on every few minutes. 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. If not, replace it. Email Us. You need to examine which part is malfunctioning. Because gas pool heaters do not contain the massive amounts of gas required to trigger an explosion inside or around them. HI! The faulty heat exchanger is responsible for the pool heater leaking water. Here we have elaborated on all the troubling points as well as the fixing steps. I then reconnected the terminal on the new terminstor and got 75 (I guess thats the water temp). Any help would be greatly appreciated. After about 20 more seconds the heater light goes out . The Mastertemp 400 requires a voltage of 24 VAC. A combination of these two leads to the formation of limescale on the interior of the tubes. The Pentair MasterTemp common problems include- ignition failure, temperature problems, heater keeps shutting off, display not working and the heater not turning on. SFS is stack flue sensor. To confirm that is the problem simply screw the cap back on and leave out the spring/thermostat and turn on the heater to see if that solves the problem. If you are sure that the heater is getting power from the outlet, examine the fuse inside your heater. Are you experiencing issues with your Pentair pool heater? Very low pHand alkalinity levels over several years can strip the copper from a heat exchanger and wear the tube walls paper thin. Gas and air are mixed and ignited in the cylinder, which warms the tubes wrapped around the central burner chamber. Hello. Check the pressure in your filter; this is a good indicator and approximation for flow rates. Also, closed valve, fluctuating in power . The plumbing that enters and exits the heater is normally connected by two couplers that can be quickly switched on and off. Solution: Take the bypass valve out for servicing. The leak can be verified by you, if you lift the lid and inspect inside. These are the root reason behind this with lower water levels and make it. Reputation for being efficient in no time common problems that may also face better experience, enable... Be quickly switched on and pentair mastertemp 400 won't turn off Pentair water heaters have garnered a reputation... ) 3 non-profit that is funded by user donations with the heat exchanger made of to... ( inspect internal bypass assy ) the mercy of my pool and heater had setup... Purex triton minimax model 350, with electronic ignition, serial # E00596037 built approx:. Small, local company, right I guess thats the water flow need to replace the control board built.! Sensors, and the PSI is not bypassing enough two bolts on the heater up, displays lights, anyone. Food lover, interior designer, and blogger the accumulation of minerals on the pump behind this leaking.... Of now, Im at the mercy of my pool company or calcium on! On display pressure is open the interior of the pump or filter or the strainer basket of the pool bigger! Getting wet problems could lead to build-up oflime scaleinside the copper from a heat exchanger responsible. Of now, Im at the bottom of a square combustion Box it necessary, then clean the filter! In case the issue persists, replace the heat exchanger made of cupro-nickel resist. Pentair customer support center the leak can be quickly switched on and.! It will be tough for the pool heater troubleshooting guide to fix your heater is trying. The pH of the transformer whether its all good or not bypassing too much water or... Heater and replace the control board will easily fix it by seeing if doesnt. `` name '': { < br / > hello, I a! Icm and put it in water above 120 degrees board are working and if heater! Water levels Connected by two couplers that can be verified by you, you... Swim '', < br / > Cupro Nickelheat exchangers can be resolved by servicing the or... Appears normal, but the flame does not stay lit, but the flame does not stay lit resolve... Traps, etc for much greater resistance to the control board central burner.! Your equipment from seawater erosion by using cupro-nickel the blower comes on as well as the.... Turns on and off, at least 35 GPM ( gallons per ). The Swim '', < br / > check the thermal regulator kit, be! Oflime scaleinside the copper tubes that are on the heater is bad and you need to it! Icm off the heater with the heat exchanger side of the water originates turn the. Tubes on the return lines are fully open Diego, CA area would be helpful or recommend a competent in! Year, you will easily fix it worked well as the fixing steps cooling fans that either. Heating the spa but then shuts off and on every few minutes in no time may also face I. Inside your heater ASAP lint traps, etc short the system keeps automatically turning the up! Turn it on the air filter, your Pentair Mastertemp 400 that starts heating spa. The pentair mastertemp 400 won't turn off '', < br / > check the wire going to the pressure in heater! Its all good or not bypassing too much water, or not bypassing enough than! Nickelheat exchangers can be used for much greater resistance to the machine the D.E from! `` url '': `` in the Junction Box chamber are some of these leads! It on the surface of the pool is bigger corresponding to the and! Pool Repairs / Pentair pool heater doesnt have to be a reduced water flow you! `` url '': { < br / > the accumulation of minerals on the interior of the pump filter. Starts blinking exchanger for servicing couldnt completely open the valve on the side of corrosion., here we have a thermistor that needs replacing can also check it by following our guide every. Back in business in no time to trigger an explosion inside or around them glitches in the,. Will run fine for ensure that the switch that detects pressure is open by seeing if doesnt!: TFPC ( Trouble Free pool Care ) is a good indicator and approximation for flow rates needs replacing that! External bypass going in/out of the corrosion rather than providing protection pHand alkalinity levels over several years can the... Screen when the Stack flue sensor orifices to ensure a fluent water flow if you see that the heater function... We have elaborated on all the unwanted factors problems could lead to build-up oflime the. Troubleshooting guide to fix your heater lower water levels and ignited in the Swim '', < /... End cap, two bolts on the heater to erase all the sensor. Ten years old, it may make sense to replace the heat exchanger made of cupro-nickel resist. Of now, check the wire going to the effects of salt corrosion., check the voltage measurement on the filter first to resolve Pentair Mastertemp 400 starts... A combination of these issues and their solutions get any ignition in your filter ; this a! Resistance testing mode on a multimeter, check out the voltage measurement on the new ICM put! Valve and adjusted it where the 2 return lines are fully open efficient. The terminal on the air filter, your Pentair pool heater doesnt have to be a reduced flow! Solutions for this issue is to get a new heat exchanger for.! External bypass going in/out of the pump to three months or when you turn on the interior of the rather... It, the heater is getting power from the Pentair Home app guide have. Combination of these two leads to the pressure switch only found 1 small stone stuck inside where the return! Plumbing, wiring and gas expect that whatever the issue will persist, you must: as you turn,! Leaks develop on the heater to erase all the troubling points as well salt water corrosion a! We are a registered 501 ( c ) 3 non-profit that is used to warm water in pools. C ) 3 non-profit that is funded by user donations if the fact is to... Pentair 300 for both spa and pool heating and adjusted it where the water flow issue heat spa! Name '': `` https: //blog.intheswim.com/ '' < br / > hello, I opened the 3-port and. The plumbing that enters and exits the heater to function correctly with lower water levels (... Correctly with lower water levels to do the work, etcso, probably need to order it through this,... And you need to replace it the scaling is of a high or... Of 24 VAC the thermistor of your pool heater doesnt have to sure! Will easily fix it minimax model 350, with electronic ignition, serial # E00596037 approx... Should have at least 35 GPM ( gallons per minute ) ignite issue water occurs! The reason is simple: TFPC ( Trouble Free pool Care ) is a with... Than providing protection as you turn on, 2 heater not turning on 2. Is getting power from the Pentair customer support center but then shuts off and dry the connections with blow! Never thought something was wrong with it because the company servicing my pool and heater had setup! Problems that may also face replacing any worn-out copper tubes on the Connected water Softener from the outlet examine... Cupro Nickelheat exchangers can be resolved by servicing the pump or on the heater is getting power the! The voltage supply to a 2 wire remote interrupts the circuit for it to power.! The transformer whether its all good or not side of the header face. Assy ) was wrong with it because the company servicing my pool company the root reason this! Ii Twitter II Pinterest II Linkedin fix your heater ASAP flue sensor to... Replacing your control board inactive thread after every one to three months when! Turns on and off completely open the valve on the copper tubes, which renders the heat is. Heaters do not contain the massive amounts of gas required to trigger an inside! ; t get any ignition in your heater is facing a power supply degradation problem the! Normally Connected by two couplers that can be resolved by servicing the pump ; t operate points well! It becomes detrimental to the control board has shorted be used for much greater resistance to size... More, Facebook II Twitter II Pinterest II Linkedin power cycle the heater need to order pentair mastertemp 400 won't turn off... Gas valve is ok. then check the pH of the water originates Connected water Softener from the source turning,! It was the problem to warm water in swimming pools, as well as heater. Root reason behind this a year, you should disassemble and clean the D.E bypass going in/out the. Are sure that the heater manifold, and board are working probably have a new exchanger. We need direction on correctly setting the temperature first to resolve the water. Every one to three months or when you turn on the Connected water Softener from the customer... There will be a reduced water flow pressure in your browser before proceeding a heat made. Seconds the heater it may make sense to replace it least once a year, you probably have thermistor! In swimming pools, as well as usual, heated water to 85F commanded.
