Faulty transformer, bad igniter, and incorrect thermostat temperature setting are regarded as some of the other major reasons behind this issue. Once you remove the cap pull out the spring and the regulator will be at the end. All . This residue is usually formed at the bottom. Find a Dealer. No, you cannot. For that, clean out the water filter first. It is a sfs code, but with no e05 error code. As soon as I read his reply about the 3-port valve going into the heater, I thought right away it all make sense. The accuracy of the heater temperature display was increased as a result of this. Is enough water getting into the heater? From our comprehensive article, you will get areliablePentair Mastertemp 400 troubleshooting guide that will assist you in fixing any issue effectively. Something mild to someone might be too hot or too cold for another. Using cupro-nickel allows you to provide machine protection against saltwater erosion. Sometimes, blockage in the pumps strainer basket creates water flow restrictions. . Pentair Mastertemp 400 Knocking Noise. And again, I always thought that when something big happened, I would have to get it replaced. Looking like might be bad control board? These Pentair MasterTemp 400 Problems relating to temperature are explored below. Pentair MasterTemp 400 Common Problems [15 Easy Fixes] March 26, 2022 by David. If the supply valve is OFF, turn it ON. Might charge under $500 to install. Gentlemen, If you are sure that the heater is getting power from the outlet, examine the fuse inside your heater. If still, the problem is persisting, reset the heater by turning the breaker ON and Off positions. Step 2: You then need to take apart the Max-E-Therm heater from the system. Sir, I have a natural gas Pentair 400 Master Temp new about 5 years ago. Product HIN / Code Requirements / Safety Warning. The temp display fluctuates wildly from 70 to 90 degrees and anywhere in between. Heat pump troubleshooting guide for Pentair pool heaters. Follow the below instructions to resolve Pentair Mastertemp 400 wont ignite issue. There is nothing, but you have to replace it to fix the leaking issue. The spa heat turns on and works fine but the pool heat only enable and never turns on. If still your heater doesnt go off, the gas valve is defective & you need to replace it. Replace it. 35. Pentair Mastertemp 250 turns on automatically. 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. Just check that the action works, and that nothing looks broken, although that is hard to tell with the thermal regulator, which is like a radiator cap that opens at a temp set point. If the airflow isnt sufficient within this period, the heater will turn off on its own. Combustion appears normal, but the flame does not stay lit. I have a Pentair 400 master temp. The main reason behind Pentair Mastertemp won't turn on is the automatic gas shut-off. How do you test a Pentair stack flue sensor? 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. 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. Section 5. Wash them out very carefully with a hose. 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. Learn more, Facebook II Twitter II Pinterest II Linkedin. See if the igniter fires when you turn on the heater. Gas accumulates at the orifice until it reaches the chambers interior, causing a backfire. filter should be backwashed. Frank, I do concur with the pool tech, that this seems like a wet circuit board, but perhaps also a damaged circuit board at this point. As we have seen, there are some Pentair Mastertemp 400 common problems that may also face. Top 3 pool pump problems, of course! If the resistance is zero, the stack flue sensor needs to be replaced. A clogged filter or pump basket can build resistance to water flow to a degree that your heater cant operate as usual. Heater will not start. But if the scaling is of a high level, it becomes detrimental to the machine. Lets start. 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. Hello, I have a Mastertemp 200. In this section, we will take a detailed look into the Pentair MasterTemp 400 common problems and their simple solutions. In short the system keeps automatically turning the temp up on its own. Hello. Enquire concerning how much voltage is being provided to the hotness siphon. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. It was installed where one return line is completely open and the other one is only slightly open. Ignition failure is one of the common problems that the users of Pentair Mastertemp face. Thermal Governors stop working primarily due to years of usage. Cleaning your heat pump on a regular basis will help you avoid this problem. The Pentair MasterTemp common problems include- ignition failure, temperature problems, heater keeps shutting off, display not working and the heater not turning on. If it fires off everything works fine a few minutes then shuts off.Ideas?Filter is clean. Examine the area for any clogs or impediments. They will help you out with replacing your control board. Check out the other heating elements. The board may be receiving some new moisture, due to a mis-placed rain shield or from leaves and dirt, blocking other runoff pathways. Now that you know how to tackle all Pentair MasterTemp 400 common problems, hopefully, you will maintain your heater well. The thermal regulator should be in fine working condition. I have replaced the Stack sensor thinking that it was the problem. Edit. "url": "https://x1.adis.ws/v1/media/graphics/i/lesl/its-logo-wide",
How does the thermistor work on the pool heater? I would place the valve perpendicular to the pipe, to block all bypass flow, and see if that makes a difference? This issue should be checked ASAP. The thermister, sensors, and Board are working. 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). Would this be caused by too high of a gas/air mixture? When the heater tries but fails to start, it recycles. If the problem persists, remove the temperature regulation completely and see whether the heater runs. It mainly happens if the discharging of the flow of air has been blocked or restricted. Verify that the igniter is dry and not damaged physically. It 'rattles' 3 times, doesn't - Answered by a verified Pool and Spa Expert . Not sure why a pool tech wouldn't replace the 2 wire remote . It fires up fine, but about 15 minutes into heating the service heater light comes on and I am unable to turn it off with the power button and I have to unplug it to reset it. The keypad membrane on your heater should be replaced to solve this issue. They said the 126 display was an error code. Replace the bad igniter and defective flame sensor from your heater. Along with that, check the water flow to the heater. Pentair MasterTemp 400 has this problem that after about 10 minutes of ignition it suddenly stops automatically and there is a sound like some stones are gargling in the pipes of Pentair MasterTemp 400. Still have the power light lit but no other lights are lit. 3. The blower fan regulates the correct amount of exhaust and plays a large role in correct combustion. Assuming the voltage isn't ideal or the necessary level, the Mastertemp 400 won't turn on. Step 4: Now take the new ICM and put it in the Junction Box chamber. If the voltage is not optimum or the required level, the Mastertemp 400 won't turn on. Check out the thermal regulator as well. Because gas pool heaters do not contain the massive amounts of gas required to trigger an explosion inside or around them. This means that the cleaner also won't impact the efficiency or operation of your filtration system. Easy troubleshooting and repair. Check for stuck objects, such as worms, dirt, lint traps, etc. Now, we make a living selling to DIY people, who like to save money. Use the following troubleshooting guide to repair common heat pump issues and get technical support. The breaker is tripped as a result of this. 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? This error code should not be shown on your Pentair heater at this point. I do not see a procedure for not being able to use the OFF button. 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 your Mastertemp on a regular basis to ensure optimal pH and alkalinity levels, and make any necessary adjustments or modifications. Boiling in the heat exchanger can occur for a number of reasons. Replace everything in its proper location. Solution: Inspect the heater's gas valve, and check that it's set to the "OPEN" position. },
To allow water to pass through the heating system, make sure the valves are open. Check the pumps strainer basket if the filter has been cleaned and the PSI is not high. Contractor's Assistant: . Thanks for your help. Troubleshooting. Pentair Mastertemp 400 error code E01 means that the water temperature sensor is open. But heat exchangers are expensive. We manually turn up the temp to a warmer setting when we swim while the system is running. Hello . Your email address will not be published. "url": "https://blog.intheswim.com/"
Learn more about pool care and repair. The Pool company said that it is probably condensation. Bad or damaged temperature sensors, the incorrect temperature setting of the thermostat, and bad internal bypass are the main reasons for occurring this. Replace the bad thermistor. This can be caused by incorrect wiring of the thermistor or a faulty thermistor. This is a common problem that might come about due to the failure of the part known as the thermal governor. You can try replacing the control board yourself in case you have some electrical knowledge. Above the fireman switch is a 1 1/4 amp fuse. 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. Again, if it is displaying a lower temperature, the heater may keep heating even if the water is hot enough. The control board is the culprit when there is no click. Eco-friendly, MasterTemp is certified for low NOx emissions and outperforms industry standards. "@type": "ImageObject",
Check to see if anything is stuck on the stove. If not, replace it. 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. Any help would be greatly appreciated. It could be plugged, or the bypass valves could be sticking. 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. Pentair Mastertemp 400 Cycles On And Off, 11. 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. 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. "datePublished": "1/8/2019",
Frank. Replace if you find any chemical or sanitizer damage there. Call Us. Clean the clogged water filter to ensure a fluent water flow. Traveler, food lover, interior designer, and blogger. If your Pentair Mastertemp 400 won't turn on, for sure, the heater is facing a power supply degradation problem from the source. I installed a Ta60d sand filter three weeks ago and it worked fine with it until two days ago. service system & service heater lights are off heater set p read more The biggest fear about theheat exchangeris that corrosion can occur to the relatively soft copper finned tubes, causing them to develop pinhole leaks. Enquire about how much voltage is being supplied to the heat pump. I shouldve tried harder to learn how the pool works. We and our partners use cookies to Store and/or access information on a device. Chemical or sanitizer damage and loss of connection to the pressure switch also lead to this issue. Broken safety switches, faulty transformers, and wrong temperature settings are also responsible. Manuals; Brands; Pentair Manuals; Swimming Pool Heater; MasterTemp 400; . Paul, that sounds like an external heater bypass arrangement, used when very large pool pumps are used, to allow some of the water to bypass the heater. The heater is only 3 yr old, just seems the erratic behavior is electrical/electronic in nature. Same issue continues. 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. You will need a screwdriver for this. The thermal regulator can be stuck closed. And if the heayer shuts off, the gas valve is ok. Then check the control board & fix it. },
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? Measure the voltage of the heater transformer. Replace the bad ones. Is there a bypass valve open? We have a Pentair pool heater that all the sudden kicked off Saturday. Usually, pool water needs a balanced amount of chemical levels on the surface, which acts as a barrier against corrosion. I also noticed that I couldnt completely open the valve on the return lines. Following this article, you can get solutions to some of these issues. The leak can be verified by you, if you lift the lid and inspect inside. Ensure enough gas supply on the heater. Use this resistor to test the thermistor. You might also bring the heat exchanger in for maintenance. Take a closer look at where the water originates. However, about 3 to 4 months ago it started turning itself on and heating the pool. "caption": "In The Swim Blog"
"dateModified": "1/8/2019",
Solution: To solve this issue, all you can do is replace the defective keypad membrane with a new one. Ensure that the power outlet your Pentair heater is connected to is good and provides the appropriate amperage for the heater. The heater read more If the issue is related to a high limit switch, examine the fact by ba bypassing the switch. Home / Pool Repairs / Equipment Repairs / Pentair Pool Heater Troubleshooting Guide. It continuously bounces between pool and spa. Check out the pressure sensor, thermal regulator, or high limit switch. Acquire a 10k ohm resistor. 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. mike61953. "height": "219",
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If the machine that circulates is not turned on, Damage to the switch which controls the water pressure. But when the amount exceeds the limit, the heater catches it as a problem. JavaScript is disabled. Advice? Water scaling occurs when there is a high portion or very high levels of minerals or calcium building on the surface of the water. Condensation is normal when the water is cold. When this happens, the front panel buttons will stop working. Change your transformer if the supply is lower than the range mentioned. If there is any way to shield the front of the heater from rain, without enclosing or covering fully, that may be helpful. We have a new Pentair Mastertemp 400 unit that we need direction on correctly setting the temperature. There are two. The water circulating through the copper heat exchanger tubes absorbs the heat, and exits the heater a few degrees warmer than when it entered. I only found 1 small stone stuck inside where the bypass is. Not only for Pentair, but it also happens to other brands too. When you switch on the heater and it runs through the 888, 128, R13, pay attention. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. But the corrosion mainly occurs from the leakingof the interior parts of the heater, low water flow, open bypass valve, stuck closed of the thermal regulator, dirty filter, and imbalanced PH level on the pool water. Search. Burner pulsates or surges, especially on ignition. Also could possibly have circuit board problems. A clogged pool filter or pump basket will prevent water from flowing freely, so make sure its all clean and all valves are open. 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. Thank you for your time and response. To Turn off Gas to Appliance. (Be sure that it is leaking and not just condensating). To get a solution, first, check the thermal regulator which you get between the inlet or outlet of the heater. The air space above the burner heats up, which heats the copper finned tubes laying on the top of the combustion box. To accomplish this, you must: As you turn on the heater, the error code should no longer be on display. 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. SOURCE: Pentair MasterTemp 400 Heater Will run fine for. It will be tough for the heater to function correctly with lower water levels. I know I can buy for much less through you guys or elsewhere online. The wiring diagram is given below for your reference. The burner is located in the center of the combustion chamber, wrapped by the circular copper heat exchanger tubes. Check the pressure in your filter; this is a good indicator and approximation for flow rates. When I hold it, the temp slowly went up to 90. 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. When the condenser coil on your heat pump gets unclean, it needs to work more to provide equal amounts of heating as normal. Then i see a R9 code. The Pentair MasterTemp common problems include- ignition failure, temperature problems, heater keeps shutting off, display not working and the heater not turning on. After just a few minutes on heating, the burners shut off, before the water is warm. You can also check it by seeing if it opens up when you put it in water above 120 degrees. Replace it if you find no voltage there. But just like any electronic device, there are some issues with the Pentair Mastertemp 400. It has a big role in controlling the heater operation. This problem needs to be fixed ASAP. Possible Cause: Pilot light isn't lit. The pool system must sustain the water flow in order for heaters to perform efficiently. Reason 4: Thermal Governor has got stuck and is not opening. Mastertemp 250 Won't Turn On. 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). http://www.haywardnet.com/pdfs/uhs-heater-troubleshooting-guide.pdf Page 37. I have a Pentair 400 mastertemp propane spa heater. One of the biggest fears any owner of a Mastertemp has is the corrosion of the heat exchanger. Apart from the built in temperature controller, a built in water pressure switch combined with a stack flue sensor monitors the pump to prevent it overheating. 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. You may require cleaning your filter this way twice a year instead, depending on consumption (particularly if your pool is open all year). First, you need to check on the wiring connection of the thermistor. {
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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. I look forward to your advice. Theburner system of the MasterTemp/Max-e-Therm heaters is called the flame holder. The exhaust pipe is leaking water. }
. I also cannot get the red up arrow to raise the temperature to raise the desired temperature. Test your control board with a multimeter. You are welcome! To safeguard your heater from freezing temperatures, do two things. If your Pentair MasterTemp is making a knocking sound, it can be because of a faulty manifold bypass or a broken temperature regulator. When I fire up the heater on Pool it begins to heat but after about 5-10 minutes it moves over to Spa Heat (which I dont have a spa) and shuts down the heater. James from TFP noticed something wrong with the 3-way valve into the my heater. Replace the defective one. Replace with new igniter. It was installed about 3 years ago and there haven't been any problems. Inaccurate Temperature Control or Display. 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. . Use a heat exchanger made of cupro-nickel to resist corrosion. In some cases, the water can become too hot or too cold. An HVAC company would install it as well, or an Appliance company. Please help. Learn how your comment data is processed. It is old and a bit rusty and loud. 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. Save my name, email, and website in this browser for the next time I comment. To troubleshoot each of the above issues, the user needs a quick working solution guide. 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. 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. I think its a bit on the high side. Troubleshooting the stacked exchanger type of heater is not much different than other electronic or digital pool heaters. Save money and energy with the MasterTemp High-Performance Heater. Its a fun combination of plumbing, wiring and gas. "@type": "Organization",
I have a Pentair Master Temp 300 Pool Heater that is 6 years old. Our Pentair pool heater troubleshooting guide will have your heater back in business in no time. Trouble shooting a mastertemp that will not turn on when buttons are pressed. and follows into a 6 page flowchart to step by step troubleshoot a Pentair or Sta-Rite pool heater, and get it firing again fast! To get to the burner inside the heater, open it up. Clean up all the flue sensor orifices to ensure there is no grime on them. Operating Control Panel. If you agree, which device is the most likely to fail and how does one test it. 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. Yes, there are some Pentair Mastertemp 400 common problems but its still a good one and highly recommended. "width": "611",
Check and rid the pump impeller of any dirt stuck inside. Thermal Governors are used to maneuvering the cooling fans that can either be on or off. This also includes changing outdated copper tubes that sit on the interior of the machine. Posted on Nov 23, 2010. In case your Pentair MasterTemp 400 is overheating your pool water, the culprit most likely is the control board. Make sure that the filter of the heater is cleaned as well. I also noticed that the flap wasnt opening even at 3450rpm and 20-25psi. After about 15 seconds I hear a clicking noise then the heater light stays on for about 5 seconds, then starts blinking again. It means that the ignition control module has failed to ignite the heater. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. Hopefully, now you have a crystal clear idea of each of the Pentair Mastertemp 400 problems. I do not have it connected to a spa. Basically, this problem occurs when there is no proper . If the fact is related to the safety switch, jumpstart your heater and replace the bad switches. This kind of damage can be very costly. 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.