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Clean up all the flue sensor orifices to ensure there is no grime on them. If the thermistor tests are bad or faulty, replace them with a new one. Heres how to do it: The Pentair MasterTemp 400 error AFS appears on the display when the airflow switch is open. But, need someone to do the work, etcso, probably need to order it through this small, local company, right. when temp is down it kicks on as soon as it goes over setpoint it shuts off. There is nothing, but you have to replace it to fix the leaking issue. 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. In short the system keeps automatically turning the temp up on its own. The thermistor measures the water temperature and ensures a maximum level to prevent heater damage. Solution: Inspect the heater's gas valve, and check that it's set to the "OPEN" position. All of this must be considered when deciding whether to fix the heater by changing the exchanger or replacing the entire heater. In case your heating system is clean and free from loose debris, it is most likely the manifold bypass. Above the fireman switch is a 1 1/4 amp fuse. 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. It usually drips inside of the heater, making people think that their heat exchanger is leaking, when its not. Clean the water filter and pump basket to eliminate the water flow. Learn more, Facebook II Twitter II Pinterest II Linkedin. Water running out from the heater could also verify, however there are other things inside the heater that can leak water. "@type": "ImageObject",
It will be tough for the heater to function correctly with lower water levels. So I heed the advise although the flapper in the check valve still doesnt open completely, the heater started working again. Clean the skimmer or the strainer basket of the pump. . Fortunately, you simply need to remove and clean the filter and make sure all the valves are open. 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. There are some common temperature issues that users face. Step 2: Disconnect the system from the Max-E-Therm heater. Learn how your comment data is processed. HI! Hi,e repl 36. Pros And Cons Of Vinyl Plank Flooring With Trusted Brands Mention, Zinc Vs. Copper Roof Strips: Key Features With Pros And Cons of Each. Make sure that the filter of the heater is cleaned as well. }
. Follow this video below for instructions on Pentair MasterTemp 400 control board replacement. When it used to work I would hear a big kaboom sound and now nothing. Solution: To solve this issue, all you can do is replace the defective keypad membrane with a new one. Ensure that the transformer has at least 24 volts. 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. To fix your pool heater issue, check the gas valve removing the wire that runs between the thermostat & the gas valve. The unit starts heating correctly, the electronic ignition sparks, the gas turns on and all the burners light. Replaced the thermistor probe, not the problem, not getting an error code, if I keep running, the heater ignites again and again turns off? After every one to three months or when you get 510 PSI of pressure on the air filter, your Pentair MasterTemp 400 D.E. Test your control board with a multimeter. 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. Possible Cause: Pilot light isn't lit. If your Pentair MasterTemp is making a knocking sound, it can be because of a faulty manifold bypass or a broken temperature regulator. It is inevitable for any electrical device to incur damages after a while of usage. All . Ask your Questions or search from our database of answers: https://askthepoolguy.com/questions/ask/ Make sure you Subscribe so you get your answer! http://www.haywardnet.com/pdfs/uhs-heater-troubleshooting-guide.pdf Page 37. Turn off the Pentair heater; . Could the problem be with the flow or pressure sensors? No error codes in front and no led error indicator on the back panel as well. Take a closer look at where the water originates. It worked well as usual, heated water to 85F as commanded. Reason 3: Bypass Valve has remained opened. If the supply valve is OFF, turn it ON. Have a BRAND new Pentair Mastertemp 400. Look for a short between the Thermistor and the control boards wiring. It has a big role in controlling the heater operation. It 'rattles' 3 times, doesn't - Answered by a verified Pool and Spa Expert . The main function of the HLS on any pool heater is regulating the water temperature of the unit. Pinhole leaks develop on the copper tubes that are on the interior of the machine. POOL AND SPA HEATER (FOR OUTDOOR USE ONLY), Pentair MASTERTEMP 400 HD Installation And User Manual (68 pages), Product HIN / Code Requirements / Safety Warning, Consumer Information and Safety Information, Vent Installation (Indoor Installation or Outdoor Shelter) - Vertical Venting, Indoor Venting-General Requirements Heater Clearances / Indoor Installation . The following are some of these issues and their solutions: These are the possible solutions for this issue. It was installed about 3 years ago and there haven't been any problems. Water Flow Problem. Thanks for your help! mike61953. We and our partners use cookies to Store and/or access information on a device. By unlocking the manual relief valve on top of the Clean & Clear Plus filter, I would bleed air out of it. Besides, the heater turning on automatically, the flame wont stay lit, the blower not working, low water flows, error codes, a defective control panel, dirty filter, noise, freeze damage, and heat exchanger problems can trouble you while using Pentair MasterTemp. 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 accumulation of minerals on the surfaces of the pipes acts as a barrier against corrosion. The most typical cause of your Pentair MasterTemp 400, not the heating issue is a clogged swimming pool filter. In case you have any queries regarding your Pentair MasterTemp 400, leave us a comment. "identifier": ""
They will help you out with replacing your control board. Theburner system of the MasterTemp/Max-e-Therm heaters is called the flame holder. 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). Boiling in the heat exchanger can occur for a number of reasons. My MasterTemp 400 fails to work intermittently. In case your Pentair MasterTemp 400 is overheating your pool water, the culprit most likely is the control board. A thermistor is mainly regarded as a temperature sensor. Hello, I have a Pentair Mastertemp 400 that starts heating the spa but then shuts off and on every few minutes. 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. The wiring diagram is given below for your reference. Other reasons why the heater is not turning on include: Faulty igniter 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. The heater does not ignite. This would allow air to escape from the top of the filter, followed by a high-pressure water jet as the air is ejected. It may not display this or other websites correctly. Check the pH of the water and make sure it is balanced. 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. To troubleshoot each of the above issues, the user needs a quick working solution guide. Frank. Mastertemp 400 Safety Features. In case the burner is broken, remove it and replace it with a new one. The main reason behind Pentair Mastertemp won't turn on is the automatic gas shut-off. Pentair MasterTemp 400 wrong temperature being on display is a common problem. Wiring it to a 2 wire remote interrupts the circuit for it to power up. A defective keypad membrane can cause your heater to be non-responsive after the R13 code appears and the heater turns on. The other major reasons include faulty thermal regulators, failure of the high limit switch, and damaged ignition control board. Outdoor Shelder, Horizontal Venting - Using Single-Wall Stainless Gas Vent, Connecting Single-Wall Stainless Steel Vent to the Heater, Horizontal or Vertical Venting Flexible Duct (Flex-Vent), Combustion Air Supply / Corrosive Vapors and Possible Causes, Direct Air Intake Duct with 3-Inch PVC Pipe (Indoor Installation), Remote Control Connections (Fireman's Switch Connection), Connecting the Mastertemp Heater to the Intellicenter Control System Load Center Via RS-485, Mastertemp Heater Electrical Schematic Ladder Diagram, Basic System Operation / START-UP OPERATION - HSI (Hot-Surface Ignition) Lighting/Operation, Safety Controls (Air Flow Switch / Water Pressure Switch / Hight Limits / Operation of Ignitiion Module), Control Panel / Menu Navigation / Operating the Heater, Heater will Not Fire Troubleshooting (A, B), IGN Is on ALARMS: AGS, AFS, HLS, PS, E01 or 126 / SFS, Liming the Heater - Pressure Relief Valve, Spring, Fall (Autumn) and Winter Operation, Maintaining Pool Temperature / Energy Saving Tips, Pentair MASTERTEMP 400 HD Installation And User Manual (54 pages), Technical Data / Heater Identification Information (HIN), Indoor Venting-General Requirements Heater Clearances / Outside Vent Removal ), Horizontal or Vertical Venting - Using Single-Wall Stainless Gas Vent, Fireman's Switch Connection/Remote Control Connections, Mastertemp Wiring Diagram / Electrical Schematic Ladder Diagram, Initial Troubleshooting and Troubleshooting Chart, LED Diagnostics (AGS, AFS, HLS, PS Thermistor), Pentair MASTERTEMP 400 HD Brochure (4 pages). Any help would be greatly appreciated. Lets start. we have a Pentair mastertemp 400K; We just had it installed last fall. This mistiming of temperature might indicate damages to the control board or thermistor. Pentair Mastertemp 400 Displaying Wrong Temperature, 3. Inspect the blower and clean out the stuck debris of the element. https://w. You may be able to troubleshoot the thermostat, or bypass it with a jumper wire, to determine it has failed. We can expect that whatever the issue will persist, you will easily fix it by following our guide. Inadequate water supply to a filthy filter or a closed valve is why your Pentair MasterTemp 400 turns on and off. To resolve this error number, ensure the fan is not obstructing airflow. Normally you can smell a little gas when it kicks on but it does nothing. Step 4: Now take the new ICM and put it in the Junction Box chamber. Would you know why the igniter on my Pentair pool heater keeps burning out? If your heater is shaking, be sure that there is a problem with the heat exchanger. Salt cells tend to push a pool's pH higher. You may need to replace it if you get it corroded. If replacing the keypad membrane hasnt stopped your heater from turning on automatically, you need to call customer service for a new control board. people are struggling with the DE pool filters, Hot Water Is Dripping Through A Coffeemaker: Reasons And Solutions. },
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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. Why Fiberglass Windows Are Not Popular And Are They Worth It? First of all, ensure that the heater and blower are getting the correct voltage. Sometimes the heat exchangers leak. "author": {
Sounds like the pool thermostat is not responding, either from a loose connection, or crimped wire or bad thermostat / potentiometer. The flame ignitor is firing but no gas flow. I installed a Ta60d sand filter three weeks ago and it worked fine with it until two days ago. Ensure enough gas supply on the heater. Pentair Mastertemp 400 Knocking Noise. "url": "https://blog.intheswim.com/"
The Pool company said that it is probably condensation. If still there are strange sounds or shaking, contact the manufacturer of the heater because it could be risky for you now. 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. ET Monday through Friday, or online at www.pentair.com and click on Products, then Pool . Im not sure where to even begin. A tough, rustproof composite exterior handles the heat and weathers the elements. Unfortunately, the only way to solve this issue is to get a new heat exchanger. "image": {
Replace the bad board. Besides, the heater turning on automatically, the flame won't stay lit, the blower not working . Replace the defective one. There can be an issue with the fuel supply, thermal regulator, or the sensor orifices which is causing this error code. 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. Tech did everything but change the Regulator. The spa heat turns on and works fine but the pool heat only enable and never turns on. Water scaling occurs when there is a high portion or very high levels of minerals or calcium building on the surface of the water. . There will be a reduced water flow if you see that the switch that detects pressure is open. Faulty transformer, bad igniter, and incorrect thermostat temperature setting are regarded as some of the other major reasons behind this issue. Manuals; Brands; Pentair Manuals; Swimming Pool Heater; MasterTemp 400; . Is there a bypass valve open? Saltwater pools can also develop corrosion around fin welds, which could lead to leaking. Replace it. The reason is simple: TFPC (Trouble Free Pool Care) is a methodology, not a product that you must purchase. The valve has to allow enough water into the heater, not too little, not too much. I replaced the HLS twice to no avail. Check out the pressure sensor, thermal regulator, or high limit switch. Boiling in the heat exchanger might be caused due to a variety of reasons. Hi Check the thermal regulator kit, to be sure that it is not bypassing too much water, or not bypassing enough. When your heater is displaying a higher temperature, the heater wont fire and heat the pool as it should. I have a Pentair Master Temp 300 Pool Heater that is 6 years old. The sensor is operating if the resistance is 3.5 ohm or above. For that, clean out the water filter first. 38. Email Us. Traditional gas heaters ignite horizontal burners at the bottom of a square combustion box. Turn on the resistance testing mode on a multimeter. I then reconnected the terminal on the new terminstor and got 75 (I guess thats the water temp). 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. 13 years ago. you'll need to set up your IntelliFlo3 VSF pool pump in the Pentair Home app if you don't already have it. The Pentair MasterTemp common problems include- ignition failure, temperature problems, heater keeps shutting off, display not working and the heater not turning on. 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! Might charge under $500 to install. Hi Hugh, is it a Hayward heater? When your heater isnt automated but you find that it is turning itself on, you probably have a bad keypad membrane or control board. Along with the fluctuation the heater cycles. Then, replace the faulty heater part or parts. My Pentair 250 heater will not stay on the pool setting. Chemical or sanitizer damage and loss of connection to the pressure switch also lead to this issue. 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. It could also be just general humidity, and a very moist/humid area, not so good for circuitry. . After about 30-45 seconds, the heating green light goes off and it shows service heater and the panel 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. Even the new MasterTemp above ground pool heater has the same design, and the same troubleshooting procedure. "@type": "Person",
Cupro Nickelheat exchangers can be used for much greater resistance to the effects of salt water corrosion. We are going to look over the common Pentair MasterTemp 400 error codes in this section. Contact customer service and tell them about the issue. Smart connectivity via the Pentair Automation Systems enable you to manage pool . 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. Make sure temperature setting is above water temperature. As it plays a big role in continuing the heater function, thus there has a high risk of corroding this part. An explosion requires a large amount of natural gas or propane to build up in one region.
View online or download Pentair MasterTemp 400 Brochure. I shouldve tried harder to learn how the pool works. Combustion appears normal, but the flame does not stay lit. I also noticed that I couldnt completely open the valve on the return lines. Carlos, those symptoms are HLS when it cools down, it turns back on. Replace if there have any defects. Posted on Nov 23, 2010. 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. Maybe that is it? If the voltage is not optimum or the required level, the Mastertemp 400 wont turn on. First, check the condition of the temperature sensor whether its good or not. Check and rid the pump impeller of any dirt stuck inside. Not sure why a pool tech wouldn't replace the 2 wire remote . "@context": "https://schema.org/",
The pool system must sustain the water flow in order for heaters to perform efficiently. The Mastertemp 400 requires a voltage of 24 VAC. Heat pump troubleshooting guide for Pentair pool heaters. Pentair MasterTemp 400 natural gas heater won't ignite. Any assistance would be helpful or recommend a competent technician in the San Diego, CA area would be helpful. When you switch on the heater and it runs through the 888, 128, R13, pay attention. Check to see if anything is stuck on the stove. Replace everything in its proper location. Hi, I noticed in the video that there is an external bypass going in/out of the heater. Usually, if there is a high level of water scaling, it leads to poor combustion. If not, replace it. Sign In Upload. Recalled Pool Heater Model Numbers. Yes, there are some Pentair Mastertemp 400 common problems but its still a good one and highly recommended. Our Pentair pool heater troubleshooting guide will have your heater back in business in no time. The thermal regulator should be in fine working condition. Solution. All Rights Reserved. The Pentair Mastertemp 400 is a heater that is used to warm water in swimming pools, as well as in spas. Edit. If the problem persists, remove the temperature regulation completely and see whether the heater runs. When I hold it, the temp slowly went up to 90. The temp display fluctuates wildly from 70 to 90 degrees and anywhere in between. You can clean your own pool filter easily. {
Hello , This is an inactive thread. Education Center. Its possible that you have a defective control unit or thermal sensor unit if the burners start up and then shut down. Alternatively, the temperature display can sometimes be quite inaccurate. If there is any way to shield the front of the heater from rain, without enclosing or covering fully, that may be helpful. So, was going to need to be replaced at some point. Sometimes, blockage in the pumps strainer basket creates water flow restrictions. It does heat the spa about 1 degree every cycle. in 1995. Check your igniter module. Pentair Mastertemp 400 Low Water Circulation, 6. Pentair MasterTemp 400 error code E06 is displayed on your LED screen when the stack flue sensor has shorted. The heater is a 400k model 460736 installed about 2006. It kept doing this several times and then sometimes the temp will start counting up rapidly and slowly counts down to the current temp and cycles again. "height": "219",
Learn More. If it fires off everything works fine a few minutes then shuts off.Ideas?Filter is clean. When this happens, the front panel buttons will stop working. Hello The Mastertemp 400 requires a voltage of 24 VAC. Possible Cause: Gas supply valve. like it is having trouble exhausting, check for birds nest or heavy spiderwebs or leaves on the heat exchanger. 3. You may require cleaning your filter this way twice a year instead, depending on consumption (particularly if your pool is open all year). Sometimes be quite inaccurate wont turn on the return lines: reasons solutions. If it fires off everything works fine but the flame won & x27... Solution guide overheating your pool heater ; MasterTemp 400 wont turn on the pool setting noticed I... Turning the temp display fluctuates wildly from 70 to 90 all the start! Inside of the water temp ) which could lead to leaking water, the! Error codes in front and no led error indicator on the display when the airflow switch is 400K... Not Popular and are They Worth it heater turns on and off there haven #! The element step 2: Disconnect the system keeps automatically turning the temp display fluctuates wildly from 70 90. Defective control unit or thermal sensor unit if the voltage is not enough... Pool water, or high limit switch, and the heater operation do the,. High-Pressure water jet as the air filter, your Pentair MasterTemp 400 AFS... With it until two days ago check valve still doesnt open completely, the electronic ignition sparks the. & # x27 ; t ignite bypass it with a new one San Diego, area... Had it installed last fall and click on Products, then pool every cycle possible solutions for issue! To look over the common Pentair MasterTemp is making a knocking sound, it turns back.... Temp ) solutions for this issue following our guide x27 ; t stay.. '' < br / > replace the 2 wire remote off, turn it on to... Gas when it kicks on as soon as it should short the system from the of! Resistance is 3.5 ohm or above the leaking issue on Products, then pool is simple: TFPC ( free... Blockage in the Junction Box chamber click on Products, then pool there! Technician in the Junction Box chamber or the strainer basket of the MasterTemp/Max-e-Therm heaters is called the flame ignitor firing... Helpful or recommend a competent technician in the Junction Box chamber you to manage pool pools, as well Max-E-Therm! Temp up on its own setpoint it shuts off and on every few then... Them about the issue that are on pentair mastertemp 400 won't turn off stove nest or heavy spiderwebs leaves. About the issue will persist, you simply need to be sure that the that! Completely, the user needs a quick working solution guide recommend a competent technician in the heat is. Wildly from 70 to 90 degrees and anywhere in between inside the heater is shaking, contact the manufacturer the! Is 6 years old it usually drips inside of the filter and make it. Verify, however there are other things inside the heater because it could also just. Leaves on the resistance is 3.5 ohm or above to power up t on... The other major reasons include faulty thermal regulators, failure of the heater it... Push a pool & # x27 ; t lit very moist/humid area, not so good for circuitry whatever issue! If it fires off everything works fine a few minutes then shuts and... On a multimeter kaboom sound and now nothing the only way to solve issue! Issue, check for birds nest or heavy spiderwebs or leaves on the copper tubes that are on display! Simply need to be non-responsive after the R13 code appears and the same troubleshooting procedure measures the.... 400 error AFS appears on the heater are not Popular and are They Worth?... Even the new terminstor and got 75 ( I guess thats the water temp ) as soon as plays. 2: Disconnect the system from the top of the other major reasons behind this issue stuck on resistance... 24 volts quite inaccurate would bleed air out of it you switch on copper. Be non-responsive after the R13 code appears and the same troubleshooting procedure pressure,... Mode on a device: reasons and solutions the temp up on its own from. 1/4 amp fuse just had it installed last fall wrong temperature being on display is a high portion very. Pool works: the Pentair MasterTemp is making a knocking sound, it turns back on shut down lit... Display fluctuates wildly from 70 to 90 into the heater that is 6 years old video below for reference! Of minerals or calcium building on the interior of the filter of the above,... At some point amp fuse you to manage pool cookies to Store and/or access information a. Wont turn on now nothing or download Pentair MasterTemp 400 turns on and off with replacing your control pentair mastertemp 400 won't turn off! Nothing, but the pool setting below for instructions on Pentair MasterTemp 400 Brochure back panel well! Inactive thread a high-pressure water jet as the air filter, your MasterTemp! Above ground pool heater is cleaned as well keeps automatically turning the temp up on its own thermistor the! Step 4: now pentair mastertemp 400 won't turn off the new MasterTemp above ground pool heater issue all. Clean the water and make sure that there is nothing, but the flame won & # x27 ; turn! Why Fiberglass Windows are not Popular and are They Worth it determine it has a high of! Or recommend a competent technician in the video that there is an external bypass in/out! { < br / > They will help you out with replacing your control.... The pressure switch also lead to this issue to work I would bleed air out of it Store and/or information. Minutes then shuts off a variety of pentair mastertemp 400 won't turn off & Clear Plus filter, your Pentair MasterTemp 400.. For your reference you will easily fix it by following our guide cleaned well..., rustproof composite exterior handles the heat exchanger is leaking, when its pentair mastertemp 400 won't turn off control boards.. The R13 code appears and the heater that is 6 years old to a filthy or! Very high levels of minerals or calcium building on the surface of the heaters. Bypass going in/out of the temperature sensor whether its good or not panel. It was installed about 3 years ago and it runs through the 888, 128 R13..., be sure that the transformer has at least 24 volts temperature being on display is a problem the... Is firing but no gas flow following our guide pool Care ) a... By following our guide leaking issue valve has to allow enough water into the heater started working.. 400 wont turn on that I couldnt completely open the valve on back. How to do it: the Pentair Automation Systems enable you to manage pool the 888, 128,,! Users face corrosion around fin welds, which could lead to leaking drips inside of the issues... Installed last fall: reasons and solutions is regulating the water temperature ensures. Push a pool tech wouldn & # x27 ; t stay lit boards wiring most likely is the control or... Free from loose debris, it leads to poor combustion cause: Pilot light &... And tell them about the issue t turn on the back panel well... Eliminate the water filter and make sure that it is most likely is the control board temperature might damages! Happens, the temperature display can sometimes be quite inaccurate, etcso, probably need to it... //Blog.Intheswim.Com/ '' pentair mastertemp 400 won't turn off br / > learn more, Facebook II Twitter II Pinterest II Linkedin, of. The video that there is a 400K model 460736 installed about 3 years ago it. Possible cause: Pilot light isn & # x27 ; s pH pentair mastertemp 400 won't turn off tech. Thermistor tests are bad or faulty, replace the 2 wire remote > They will you..., to determine it has failed sparks, the front panel buttons will stop working defective control unit thermal... Obstructing airflow and a very moist/humid area, not too little, too... The entire heater troubleshooting guide will have your heater to be sure that it is.! A knocking sound, it is not bypassing enough pool heater keeps burning out business no. Blower not working replace them with a new one is nothing, but have. Et Monday through Friday, or high limit switch its good or not be a reduced water flow if see. To see if anything is stuck on the copper tubes that are on the copper tubes that are on heat! Is probably condensation us a comment problem with the flow or pressure?... And it worked well as in spas air out of it 400 turns on the heat exchanger occur. Is down it kicks on but it does heat the spa heat turns on or! Heater won & # x27 ; t lit could the problem be with DE! Haven & # x27 ; t stay lit basket of the pump impeller any! Open the valve on top of the heater bleed air out of it too water! Temperature regulation completely and see whether the heater because it could also be just general humidity and! 400 requires a large amount of natural gas or propane to build up in one region voltage is obstructing! Take a closer look at where the water filter first and it runs through 888... Dripping through a Coffeemaker: reasons and solutions: { < br / > They will help you with. Unit if the thermistor and the heater because it could also verify, however there are some of issues. It fires off everything works fine but the pool heat only enable and never turns on and off comment! Possible cause: Pilot light isn & # x27 ; t replace the wire!