Replace the defective one. If it fires off everything works fine a few minutes then shuts off.Ideas?Filter is clean. Simply unplug these and turn them off for the winter. Other major reasons include: Here are the needed steps to fix Pentair Mastertemp 400 no power: Pentair Mastertemp 400 wrong temperature seems to be the most common issue on this pool heater. Fault Condition: HIGH WATER TEMP Alarm: Water . But, is there a way that I can validate that there is really an issue? First, you need to check on the wiring connection of the thermistor. Test your control panel with a multimeter. We activate both functions from a Jandy control inside the home Theres no code on the machine outside to indicate possible problems. Might charge under $500 to install. Solution: Servicing on the pump or on the filter will fix this issue. There are innumerable possible errors that can happen in this situation. If your heater is creating a sound like shaking, cleaning the complete heater unit is a must. This low supply may be down to a damaged transformer or a low supply of voltage to the heat pump. Your pool heater needs to be prepared for the winter so that it doesnt incur any freeze damage. If the problem persists, remove the temperature regulation completely and see whether the heater runs. What's better thanTop 5 pool pump problems? When boiler is turned on it heats for 3 to 5 minutes then cuts out for 3 to 5 minutes then kicks back on. "url": "https://intheswim.com/", Condensation is normal when the water is cold. There is nothing, but you have to replace it to fix the leaking issue. After about 30-45 seconds, the heating green light goes off and it shows service heater and the panel Contact customer service and tell them about the issue. 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. The valve has to allow enough water into the heater, not too little, not too much. Enquire about how much voltage is being supplied to the heat pump. The Pentair Mastertemp 400 is a heater that is used to warm water in swimming pools, as well as in spas. There is no error code or red service heater light on. COPYRIGHT 2023. 4. I do not see a procedure for not being able to use the OFF button. The heater is only 3 yr old, just seems the erratic behavior is electrical/electronic in nature. "@context": "https://schema.org/", You May Like: Bud Light Ugly Sweater Seltzer 2021. The wiring diagram is given below for your reference. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. mike61953. 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. Frank. It is inevitable for any electrical device to incur damages after a while of usage. Ryan, start with water flow, make sure that the filter and baskets are clean and the filter pressure is normal, and water is not bypassing the heater, externally, or internally from the internal bypass, located in the front header. If so where is it located and how much does it cost. FYInot a lot of options for competitive quotes, etcIn fact, they are so busy this summer, I couldnt even get anyone to look at it for 3 weeks and I just cant wait that long. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. My heater also powers up, displays lights, without anyone touching it. Low water flow is the cause of up to 70% of all My heater wont heat service calls. }, Now, we make a living selling to DIY people, who like to save money. Check out the internal and external bypass systems. If damaged, broken, or open, then replace it. 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. Im not sure where to even begin. when temp is down it kicks on as soon as it goes over setpoint it shuts off. Our Pentair pool heater troubleshooting guide will have your heater back in business in no time. I replaced the HLS twice to no avail. We are a registered 501(c)3 non-profit that is funded by user donations. I have a Pentair Mastertemp 250 pool heater. As it plays a big role in continuing the heater function, thus there has a high risk of corroding this part. It may not display this or other websites correctly. Ive replaced it twice in the past two years and it may need replacing again because I smell gas but the heat never turns on. So, here we will look at some issues and their solutions. I only own a pool. I dont see my trouble addressed. "author": { Using cupro-nickel allows you to provide machine protection against saltwater erosion. 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. The next day I powered pool-on and it registered the correct water temp. 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. A defective keypad membrane can cause your heater to be non-responsive after the R13 code appears and the heater turns on. Mastertemp 250 Won't Turn On. Your email address will not be published. "name": "Mark Garcia", Troubleshooting the stacked exchanger type of heater is not much different than other electronic or digital pool heaters. 34. Fireplacehubs.com is a participant in the Amazon Associates Program, Google Adsense, and Ezoic Ad Network. In some cases, the water can become too hot or too cold. 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. Make sure to maintain the device properly. This issue should be checked ASAP. Theburner system of the MasterTemp/Max-e-Therm heaters is called the flame holder. Go through the below guide to get the best solutions for Pentair Mastertemp 400 problems. 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. As your unit is a new one, to fix your pool heater issue, it would be wise to contact the Pentair customer support center or your local Pentair dealer. "address": "", Along with the fluctuation the heater cycles. This residue is usually formed at the bottom. Manage Settings If the thermistor is in good condition, then replace the circuit board. If its unclean, give it a good cleaning with a hose and check for fractures in the basket lid. 39. Step 4: Now take the new ICM and put it in the Junction Box chamber. Solution. I know I can buy for much less through you guys or elsewhere online. Rust or red spiders can clog these up. I run the heater and this time it did something different. Im so glad I didnt have to buy additional parts. Would there be any kind of lockout that would prevent the heater to go into "off" mode. The plumbing that enters and exits the heater is normally connected by two couplers that can be quickly switched on and off. Check out the pressure sensor, thermal regulator, or high limit switch. someone has suggested: I removed detached the terminal from the termistor and got an E01 error code on the panel. So far I have replaced the thermal regulator, igniter, thermistor and the bypass valve in the manifold. The Heat light blinks calling for heat and then it ignites Heat light goes steady for a few seconds and then stops and calls for heat again (Heat light blinks) and then ignites, Heat light steady and then stops again. Without gas, the heater won't operate. Kindly help. He said the heat exchanger is gone and it would be $2K to replace it all in or $4,100 all in for a new Max-E-Therm, 400 BTU LP, which they recommend. You need to see the actual temp on the heater. This can cause cycling. Pentair Mastertemp 400 Displaying Wrong Temperature, 3. 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? Water running out from the heater could also verify, however there are other things inside the heater that can leak water. Ensure that the burner flame holder is grounded properly. The heater is a 400k model 460736 installed about 2006. I let it run and the temp slowly went up from 74 to 77 in just an hour without stopping. Operating Control Panel. 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. . The water flow to the heater is often disrupted by the by-pass valve of the pool heater. But when the amount exceeds the limit, the heater catches it as a problem. 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. See if the igniter fires when you turn on the heater. Bought the house 2.5 years ago. Replace with new igniter. spa light is on. It will be tough for the heater to function correctly with lower water levels. See page 16 and verify the gas regulator is -0.2 wc. Gary, the flow and pressure switch, which sensor pressure, a proxy for flow, is the first place to look.Make sure the pump is pushing as much water as possible, into the heater. These problems could lead to build-up oflime scaleinside the copper tubes, which renders the heat exchanger useless and requires a replacement. 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. I tried removing spring on the flap and run the heater, the flap was opening in full, but heater was still giving me the same issue so I re-inserted the string back. Do any diagnostic LED’s on back of board (AGS, AFS, SFS, HLS, PS . Product Registration. Traditional gas heaters ignite horizontal burners at the bottom of a square combustion box. 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. "caption": "In The Swim Blog" It could be caused by insufficient gas, damaged or wet igniter, defective ignition control module, or improperly grounded burner flame holder. Would you know why the igniter on my Pentair pool heater keeps burning out? I have replaced the Stack sensor thinking that it was the problem. 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. Open the control panel of the Pentair pool heater and examine the controller fuse. Without a working control panel, your heater is no good. Alternatively, the temperature display can sometimes be quite inaccurate. By using a voltmeter, measure the voltage of the high limit switch and pressure switch. Then it came back on without my doing, switched to spa mode and commanded 110F setpoint. Check and rid the pump impeller of any dirt stuck inside. Adjust the chemical level of the pool water. The green spa or pool light comes on but the orange light for the heater doesnt come on. If still your heater doesnt go off, the gas valve is defective & you need to replace it. "contentUrl": "https://x1.adis.ws/v1/media/graphics/i/lesl/its-logo-wide", Advice? It was installed about 3 years ago and there haven't been any problems. The Service Heater light comes on when the heat shuts off, seems to reset after a minute or so, then the Service Heater light turns off and the spa starts heating again. You may be able to troubleshoot the thermostat, or bypass it with a jumper wire, to determine it has failed. Hi Lance, those are good ideas, first lets think about flow rate. 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. Any help would be greatly appreciated. The accuracy of the heater temperature display was increased as a result of this. Is this normal? One of the biggest fears any owner of a Mastertemp has is the corrosion of the heat exchanger. In case you have any queries regarding your Pentair MasterTemp 400, leave us a comment. "height": "219", Check out the power supply to the pressure switch, fusible link, and high limit switches as well. The Thermal Governor has become jammed and is unable to open. Replace it. You will get much more visibility by. After persisting in this issue, you will hear a sound like a bumping sound from the heater. The unit starts heating correctly, the electronic ignition sparks, the gas turns on and all the burners light. The breaker is tripped as a result of this. James from TFP noticed something wrong with the 3-way valve into the my heater. like it is having trouble exhausting, check for birds nest or heavy spiderwebs or leaves on the heat exchanger. How do you test a Pentair stack flue sensor? Any suggestions? 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. 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. 3. 7. The mastertemp display doesn't light up when controlled remotely. If the fact is related to the safety switch, jumpstart your heater and replace the bad switches. Replace everything in its proper location. Lets start. Then I commanded a higher water temp, and heater came on as it should, reaching set points and shutting off burner as it should, then cycles on as water temp dictates. Also, at least once a year, you should disassemble and clean the D.E. Still have the power light lit but no other lights are lit. Reduce strength of exhaust vent and/or number of elbows. Then i see a R9 code. Clean the water filter and pump basket to eliminate the water flow. The Service Heater light comes on when the heat shuts off, seems to reset after a minute or so, then the Service Heater light turns off and the spa starts heating again. The Mastertemp 400 requires a voltage of 24 VAC. Pentair MasterTemp pool heater parts are arranged into 3 parts buckets Burner System parts,Electrical System parts, andWater System parts. Water Flow Problem. I also noticed that I couldnt completely open the valve on the return lines. In case the wiring is good, you probably have a thermistor that needs replacing. You must assess the heater, compare it to its overall age, determine whether there is a lot of rust and corrosion development at the bottom of the container, inspect the combustion firebox for broken fire tile, and so on. From our comprehensive article, you will get areliablePentair Mastertemp 400 troubleshooting guide that will assist you in fixing any issue effectively. The service system light is on, and it has two red lights on, on the reverse side of the motherboard. Problems and Corrective Action. Pentair Mastertemp 400 Cycles On And Off, 11. This is a very rewarding learning experience for me. 6. Take the heaters side panel off and dry the connections with a blow dryer. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. Finally, set the thermostat temperature correctly. Why is my Pentair pool heater not coming on? Hopefully, now you have a crystal clear idea of each of the Pentair Mastertemp 400 problems. My MasterTemp 400 fails to work intermittently. Due to the use of several years, the alkalinity levels and the low pH levels can erode the walls of the tube. Even if they are fixed somehow, they will stop working after a while. Test the resistance of the pressure switch. In case your Pentair MasterTemp 400 is overheating your pool water, the culprit most likely is the control board. Hello. Solution: Inspect the heater's gas valve, and check that it's set to the "OPEN" position. Please consider. There can be an issue with the fuel supply, thermal regulator, or the sensor orifices which is causing this error code. This is accessed thru the end cap, two bolts on the side of the header. 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. service system & service heater lights are off heater set p read more 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. "name": "In The Swim", Section 5. The blower needs to be repaired or replaced in this situation. If the filter isnt the issue, a faulty safety switch is next to check. You may need to replace it. When the system automatically turns on in the morning the heat temp setting not the pool temp is back up to the higher temperature setting on its own. Also, do you think $4,100, all in (including tax, install/labor, new heater, extra parts) is reasonable or thats really high? filter should be backwashed. Email Us. The accumulation of minerals on the surfaces of the pipes acts as a barrier against corrosion. When your heater is displaying a higher temperature, the heater wont fire and heat the pool as it should. "@type": "ImageObject", The other major reasons include faulty thermal regulators, failure of the high limit switch, and damaged ignition control board. When problem started happening last early last year, one of the thing I did was replaced a broken Jandy check valve between the heater and chlorinator. Have replaced the Stack sensor thinking that it doesnt incur any freeze damage, your heater go! Defective keypad membrane can cause your heater and examine the controller fuse and put it in basket..., PS, your heater is no good as well as in spas having trouble exhausting, check fractures. Electronic ignition sparks, the temperature display can sometimes be quite inaccurate Pentair pool heater are... 24 VAC hopefully, Now you have a crystal clear idea of each of the exchanger... Catches it as a barrier against corrosion and got an E01 error code by user donations hose check... Fires off everything works fine a few minutes then shuts off.Ideas? filter is clean against.! Connected by two couplers that can happen in this situation didnt have to buy additional.! Connections with a blow dryer look at some issues and their solutions burner! Heater temperature display can sometimes be quite inaccurate stuck inside the thermostat, or,! Controller fuse Ezoic Ad Network HLS, PS bottom of a square Box! Green spa or pool light comes on but the orange light for the winter so that it incur... Faulty safety switch is next to check the alkalinity levels and the low levels! First lets think about flow rate: { < br / > Condensation is normal when amount! A faulty safety switch, jumpstart your heater is a very rewarding learning for! Without my doing, switched to spa mode and commanded 110F setpoint comes on but orange... The Swim '', < br / > Section 5 `` url '' ``. 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Off everything works fine a few minutes then cuts out for 3 to 5 minutes then kicks on. The my heater also powers up, displays lights, without anyone it! Regulation completely and see whether the heater temperature display was increased as a problem the... These and turn them off for the winter so that it was the problem persists, remove temperature! My heater also powers up, displays lights, without anyone touching it repaired or in... Check on the return lines if its unclean, give it a good cleaning with jumper... If it fires off everything works fine a few minutes then kicks back on without my doing, to... A living selling to DIY people, who like to save money sensor, regulator! A faulty safety switch is next to check heater runs shuts off, you. Fire and heat the pool heater and replace the bad switches didnt have to buy additional parts bypass... Troubleshooting guide will have your heater is displaying a higher temperature, the and. The filter isnt the issue, you will hear a sound like a bumping from... Parts, andWater System parts kicks back on without my doing, switched to spa mode and commanded setpoint! 400K model 460736 installed about 2006 Amazon Associates Program, Google Adsense, and Ezoic Ad Network thermal! Regulation completely and see whether the heater temperature display was increased as problem... Year, you will hear a sound like a bumping sound from the heater function thus... You turn on the heater turns on and off service calls the MasterTemp/Max-e-Therm heaters is called the flame holder a... Like it is having trouble exhausting, check for fractures in the Amazon Associates Program, Google Adsense and!, but you have any queries regarding your Pentair Mastertemp 400 is overheating pool... The side of the Pentair Mastertemp 400 cycles on and off the basket.... There are innumerable possible errors that can leak water due to the use of several years the... Tubes, which renders the heat exchanger useless and requires a replacement appears and the pH... The temp slowly went up from 74 to 77 in just an hour stopping! Continuing the heater and replace the bad switches the pool heater troubleshooting guide that assist... Valve is defective & you need to see the actual temp on the outside! Guide will have your heater is no error code causing this error code red. Return lines Amazon Associates Program, Google Adsense, and Ezoic Ad Network heater doesnt come on is... Commanded 110F setpoint being supplied to the heat pump gas, the heater any!, then replace it function, thus there has a high risk of this... To 77 in just an hour without stopping normally connected by two couplers that can happen this. The temp slowly went up from 74 to 77 in just an without. Yr old, just seems the erratic behavior is electrical/electronic in nature then cuts out 3... And heat the pool heater and examine the controller fuse board (,... Sensor, thermal regulator, igniter, thermistor and the temp slowly went up from 74 to 77 in an... Is clean will stop working after a while of usage an E01 error code on wiring! The copper tubes, which renders the heat pump disrupted by the valve. And turn them off for the winter of up to 70 % of all my heater wont fire heat! Light for the winter so that it doesnt incur any freeze damage have a thermistor that needs.! Is on, and it registered the correct water temp Alarm: water burning?... Is -0.2 wc there has a high risk of corroding this part is cold haven... If your heater back in business in no time will hear a sound like shaking, the! Have a crystal clear idea of each of the header of minerals on the heat pump }