The front panel just has the Heater Service light on (and displays the current water temp). Book Appointment Now. Is it the High Limit switch malfunctioning or is it the Temperature sensor? Possible cause: Thermostat. My issue is that when I push the pool/spa buttons, it turns on the blower and then just as the heater ignites, the service light comes on. Diagostic code is AGC (Automatic Gas Supply). No matter what you’re seeking in your swimming pool heater, the MasterTemp gas heater measures up. Once it cools down, it starts back up again. I feel heat coming out of the exhaust for about 20-30 seconds and then it basically stops. After about 45 seconds, the red service light goes off, the green "Heating" light flashes, and then the burner kicks in again (the heating light goes solid at that point). This problem started today, the motor comes on, about 20 seconds later I can hear a clicking and the sparks rattling away, it seems to ignite a pilot flame which burns for a 2 seconds and then it shuts off. Had this problem of the Hayward pool pump overheating and then auto-shutting off in a cycle. I have backwashed and even chaged the pressure switch. Check the Thermal Reg in the header and also make sure you have adequate water flow thru the heater, make sure your filters are clean and there are no external by-pass valves open. After starting, the Service Heater light lights up. Gas swimming pool heaters are often preferred by pool owners. I've read some onto on testing high l . Tried jumping pressure switch, same problem. Mark . It seems like it heats up the house a degree, then shuts off, then turns back on a few minutes later, heats the house a degree, then shuts off, and keeps repeating this cycle. Replaced a leaking pressure switch 2 years ago. Works OK at start up, fires up and runs for about minute 30 seconds and then start to hear gas valve clicking shutting off and on rapidly. Call Us Nationwide: 1 800-741-9956. I turn it on and it goes on then shuts off about 5 seconds later. This happens every time. Replaced temp sensor, no difference. Jun 22, 2017 3 Friendswood, TX. Post by bmanino » Fri 30 May, 2008 11:24 . new heater. Blower will start, run for about 1 minute while igniter burns, then flames are ignited. MasterTemp heaters offer all the efficiency, convenience and reliability features you want in a pool heater, plus a lot more. So if the heater fires, then we know the switch needs replacement. Then after about 15 seconds it shuts off. I have pentair minimax 100 natural gas. Hi looking for help with Pentair minimax nt 400 heater. Jul 23, 2017 #1 I am struggling with how to fix my Pentair Mastertemp 400 heater. Menu. When the furnace turns on then off after a few minutes, you need to figure out the cause so that you can keep your home warm through the blustery winter temperatures. Found the fix for this is to take the motor apart (follow youtube how-to's) and remove the spider webs from the internal cooling ducts of the motor. It is a Teledyne Laars Lite 2 400 BTU. That does not seem to be the cause. I had the heater running once this season prior to now and it ran like magic for 24 hours. Posted by 1 year ago. AquaCal says: August 3, 2015 at 1:32 pm Good morning Mr. Jacobs, Sounds like you need to have someone … Pentair Pool Heating Rapidly Increases Temp on Panel then shuts off. Pentair Garden | Posted on Mar 31, 2018 | Be the first to answer. Heater will not start. A furnace that starts and shuts off over and over again is often described as short cycling. As easy to use as your home heating system, plus, user-friendly LCD display and troubleshoot icons make system operation and monitoring a snap. Pentair Pool … If the cycling on and off is accompanied by loud banging noises then be sure to read heater is making loud noises below. Complex parts go into your furnace and power it up to produce heat in your home. Everything Else. I checked the pressure switch and I cleaned the pool filter already with no success. When I turn it on the blower comes on as well as the heater light starts blinking. ELECTRONIC POOL HEATER TROUBLESHOOTING GUIDES. And it does the same thing all over again. In this case, seek help from a technician. Call Anytime 480-648-0055. I’ve got a Pentair MiniMax 100 natural gas spa heater. Heater turmed on then one minute later turned off says 79 on display. Pentair uses state of the art workmanship, materials and manufacturing processes to create the most innovative pool and spa equipment anywhere. My Raypak RP2100 pool heater shuts off after short periods. I just lit my heater for the winter, and it will come on for a few minutes, heat the house, then turn back off again. I have been experiencing problems with an h series hayward heater. When your swimming pool heater malfunctions, troubleshooting the source of the problem can be more complex than working with filters or … The main reasons that a gas water heater automatically shuts off are because the pilot light goes out, the pilot light can’t start, or there are problems with the gas supply. Compare this list of features to any other and you’ll see why MasterTemp gas heaters are setting a new standard for total value. Furnace clicks, ignites a flame and then shuts off - stuck in a loop! Features. After about 15 seconds I hear a clicking noise then the heater light stays on for about 5 seconds, then starts blinking again. Works fine up to 97 degrees and shuts itself off. When the heater is turned on, the blower starts, and the heater ignites. Any suggestions would be greatly appreciated. It ignites the heater, but heater goes out after about 5 seconds. Sometimes gas will close and burners will flicker and come back on again without start sequence. Don’t make assumptions, just call and find out the facts. It's almost 2 years old. Back. The control board has the AFS LED on and also LED 11. Consequently, it will not be able to complete a cycle. Wont turn back on to heat pool. Pentair MasterTemp 400 K heater Pool filter clean, strainers clean, good water flow to pool and spa. Pentair Pool Heating Rapidly Increases Temp on Panel then shuts off. Gas Pool Heater Cycles On and Off Frequently. Sometimes see the PV light and Heat light flicker rapidly. And now Pentair products can deliver even more value and peace of mind, because Pentair offers extended warranty coverage on select products that are installed by a qualified installer*. Pentair MasterTemp 400 natural gas heater won't ignite. How to Troubleshoot Swimming Pool Heaters. service system & service heater lights are off heater set p … I have never been able to get the thing to turn on. During cold weather, it takes heat from the outdoors, where it is then pressurized into your home. If you need more information on the Sta-Rite pool heaters, especially questions or concerns regarding installation then I suggest you call Pentair directly. Top. Post by ozzzie3 » Sun 24 Aug, 2008 11:37 . The igniter is fairly new, I replaced it myself a few years back. Browse Heaters. My Spa / Pool Heater just began to shut off at 97 degrees. The heater only ran about 2-3 seconds before I shut it off,and the pump 4-5 seconds. Weather Replace or Repair, Call Howard Air. Pentair Mastertemp 400 Heater shuts off after a few minutes of heating. I have a Jandy LX400 Natural Gas Heater. Reply. Otherwise, you can use a multimeter to check if the thermostat is receiving power. It ignites just fine. Furnace clicks, ignites a flame and then shuts off - stuck in a loop! Techno-Solis … I cycle the heater (holding the on/off button for 10+ seconds. Here we look at what you can do to get to the bottom of this issue and make your hot water supply more reliable. Pentair Pool &... | Posted on Mar 29, 2018 | Be the first to answer. C. ctipton New member. reply. Solution: Make sure your thermostat is set to a higher temperature than your pool water. Heat pump troubleshooting guide for Pentair pool heaters. Archived. spa light is on. Heater short cycles, 1 to 5 minutes on, 30 seconds off. You don’t need a fancy test meter to troubleshoot a pool heater. 1. The heater will kick in as expected right after the switch is flipped but after about 45 seconds or so, the "Service System" light goes on and the burner shuts off (but not the blower). If you remove the Thermal Reg in the header and the heaters seems to run fine the replace with a new one. Cart is empty. It’s new to me, but approximately 12 years old. Gas pool troubleshooting can be tedious when the problem isn't easily recognized and needs a thorough investigation and it might be required for this issue. The heater lights for a few seconds and then shuts off, it then … Tech support has been busy for some time now. … Content Retrieval. If your heater comes on then shuts off, call in the experts at Howard Air in Phoenix. Set temp to 100 waited 20 minutes now nothing and help would be a nice help. Laars LX 400 Pool Heater will ignite and burn for about 5 seconds, then shuts off. Will not stay lit. The unit ignites for about 3 seconds then shuts down, then it tries to fire up again and again with the same result. hayward pool heater turns on and than right off. Designed to efficiently heat any size pool or spa, a Pentair gas pool heater will have your warm the water to your desired temperature in a hurry. SPA temp is set to to 102 degrees. Pentair 250. ozzzie3. The old heaters used to come with a pressure relief valve - its probably a good idea to install one on your heater. Flames stay ignited only for about 5 seconds then gas supply shuts off. Check the Thermal Reg in the header and also make sure you have adequate water flow thru the heater, make sure your filters are clean and there are no external by-pass valves open. Your heater always works except the day you have invited a potential sexy significant other over to use pool … Heater ignites but MAIN PCB 1.Wrong pump pressure 1.See Pump Pressure Adjustment, Then turn power switch to Heater will not turn-on “ON” position. The compact design and super-quiet operation won’t intrude on your poolside leisure time. Trustpilot. Back. If your heater comes on then shuts off, call in the experts at Howard Air in Phoenix . New igniter assemble is working fine. Dirty Thermocouple. If you have a refrigerant leak, your system is going to have trouble with the heat transfer. If increasing the temperature makes the heater turn on, then the thermostat is in good condition. Even if you haven’t purchased this pool heater yet, you can ask them questions to help you make your buying decision. Nothing (such as valves etc) has been altered since. Close. If you see ice on your outdoor unit, this may indicate a refrigerant leak. Water Temp 79. set temp to pool on 90. Covid-19 Update. 0 Answers Fan comes on but no lights on panel. Brands; Solar Heating. Each time it fires up the gas chamber ignites more violently until it finally shuts down completely between the 3rd and 6th time of trying to start up. Very compact design for such a high performance gas heater, allows for smaller overall equipment pads that won’t intrude on your poolscape. If this device activates and turns your heater off it may require service. Equipment - Build, Use, and Repair. Thread starter ctipton; Start date Jul 23, 2017; Forums. 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