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. Browse Heaters. 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. set temp to pool on 90. Replaced temp sensor, no difference. C. ctipton New member. The control board has the AFS LED on and also LED 11. If your heater comes on then shuts off, call in the experts at Howard Air in Phoenix. SPA temp is set to to 102 degrees. Everything Else. I’ve got a Pentair MiniMax 100 natural gas spa heater. The compact design and super-quiet operation won’t intrude on your poolside leisure time. 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. This happens every time. Cart is empty. Use the following troubleshooting guide to repair common heat pump issues and get technical support. Will not stay lit. ozzzie3. Inadequate water flow or malfunctioning pressure sensor. Diagostic code is AGC (Automatic Gas Supply). Complex parts go into your furnace and power it up to produce heat in your home. I feel heat coming out of the exhaust for about 20-30 seconds and then it basically stops. spa light is on. Compare this list of features to any other and you’ll see why MasterTemp gas heaters are setting a new standard for total value. I had the heater running once this season prior to now and it ran like magic for 24 hours. Post by ozzzie3 » Sun 24 Aug, 2008 11:37 . hayward pool heater turns on and than right off. Brands; Solar Heating. During cold weather, it takes heat from the outdoors, where it is then pressurized into your home. service system & service heater lights are off heater set p … I have a Jandy LX400 Natural Gas Heater. Is it the High Limit switch malfunctioning or is it the Temperature sensor? My Spa / Pool Heater just began to shut off at 97 degrees. Tried jumping pressure switch, same problem. In this case, seek help from a technician. If the cycling on and off is accompanied by loud banging noises then be sure to read heater is making loud noises below. 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. I have been experiencing problems with an h series hayward heater. … Content Retrieval. Replaced a leaking pressure switch 2 years ago. Once it cools down, it starts back up again. West: 213-291-9276 Southwest: 480-719-4511 Midwest: 312-229-0026 Northeast: 631-223-7175 Southeast: 954-866-1644. ELECTRONIC POOL HEATER TROUBLESHOOTING GUIDES. The heater might still retain a great deal of heat since there was no water from the circulation pump to take it away from the heater and move it to the pool. Gas Pool Heater Cycles On and Off Frequently. After starting, the Service Heater light lights up. When your swimming pool heater malfunctions, troubleshooting the source of the problem can be more complex than working with filters or … Sometimes gas will close and burners will flicker and come back on again without start sequence. Covid-19 Update. The heater lights for a few seconds and then shuts off, it then … If you see ice on your outdoor unit, this may indicate a refrigerant leak. That does not seem to be the cause. Then after about 15 seconds it shuts off. 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 have a refrigerant leak, your system is going to have trouble with the heat transfer. Tech support has been busy for some time now. As easy to use as your home heating system, plus, user-friendly LCD display and troubleshoot icons make system operation and monitoring a snap. Blower will start, run for about 1 minute while igniter burns, then flames are ignited. When the heater is turned on, the blower starts, and the heater ignites. Pentair Pool Heating Rapidly Increases Temp on Panel then shuts off. Possible cause: Thermostat. Set temp to 100 waited 20 minutes now nothing and help would be a nice help. Pentair Mastertemp 400 Heater shuts off after a few minutes of heating. Posted by 1 year ago. Pentair uses state of the art workmanship, materials and manufacturing processes to create the most innovative pool and spa equipment anywhere. Don’t make assumptions, just call and find out the facts. Post by bmanino » Fri 30 May, 2008 11:24 . Mark . It's almost 2 years old. Pentair Pool Heating Rapidly Increases Temp on Panel then shuts off. Sometimes see the PV light and Heat light flicker rapidly. Solution: Make sure your thermostat is set to a higher temperature than your pool water. Dirty Thermocouple. Techno-Solis … Hi looking for help with Pentair minimax nt 400 heater. Consequently, it will not be able to complete a cycle. New igniter assemble is working fine. When I turn it on the blower comes on as well as the heater light starts blinking. Heater turmed on then one minute later turned off says 79 on display. If you remove the Thermal Reg in the header and the heaters seems to run fine the replace with a new one. 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). Furnace clicks, ignites a flame and then shuts off - stuck in a loop! AquaCal says: August 3, 2015 at 1:32 pm Good morning Mr. Jacobs, Sounds like you need to have someone … My Raypak RP2100 pool heater shuts off after short periods. Laars LX 400 Pool Heater will ignite and burn for about 5 seconds, then shuts off. MasterTemp heaters offer all the efficiency, convenience and reliability features you want in a pool heater, plus a lot more. I checked the pressure switch and I cleaned the pool filter already with no success. Jul 23, 2017 #1 I am struggling with how to fix my Pentair Mastertemp 400 heater. Works fine up to 97 degrees and shuts itself off. I have pentair minimax 100 natural gas. 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. Pentair 250. Back. Heat pump troubleshooting guide for Pentair pool heaters. The heater only ran about 2-3 seconds before I shut it off,and the pump 4-5 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. Furnace clicks, ignites a flame and then shuts off - stuck in a loop! And it does the same thing all over again. I cycle the heater (holding the on/off button for 10+ seconds. Heater will not start. I turn it on and it goes on then shuts off about 5 seconds later. Jun 22, 2017 3 Friendswood, TX. It ignites just fine. The unit ignites for about 3 seconds then shuts down, then it tries to fire up again and again with the same result. How to Troubleshoot Swimming Pool Heaters. Gas swimming pool heaters are often preferred by pool owners. That's right; gas pool heaters are useful at any time of the year and usually need to be run for less time, meaning less wear on the equipment. 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. The igniter is fairly new, I replaced it myself a few years back. Trustpilot. Your heater always works except the day you have invited a potential sexy significant other over to use pool … In normal weather it works ok, but when it’s raining out (that’s my theory anyway), the heater won’t stay lit. I've read some onto on testing high l . So if the heater fires, then we know the switch needs replacement. 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*. reply. 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. Archived. Flames stay ignited only for about 5 seconds then gas supply shuts off. Reply. Weather Replace or Repair, Call Howard Air. Water Temp 79. Heater short cycles, 1 to 5 minutes on, 30 seconds off. If this device activates and turns your heater off it may require service. Had this problem of the Hayward pool pump overheating and then auto-shutting off in a cycle. It ignites the heater, but heater goes out after about 5 seconds. The old heaters used to come with a pressure relief valve - its probably a good idea to install one on your heater. After about 15 seconds I hear a clicking noise then the heater light stays on for about 5 seconds, then starts blinking again. 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 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. Pentair Pool &... | Posted on Mar 29, 2018 | Be the first to answer. Very compact design for such a high performance gas heater, allows for smaller overall equipment pads that won’t intrude on your poolscape. 1. Even if you haven’t purchased this pool heater yet, you can ask them questions to help you make your buying decision. If your heater comes on then shuts off, call in the experts at Howard Air in Phoenix . Nothing (such as valves etc) has been altered since. If you need more information on the Sta-Rite pool heaters, especially questions or concerns regarding installation then I suggest you call Pentair directly. A furnace that starts and shuts off over and over again is often described as short cycling. 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. No matter what you’re seeking in your swimming pool heater, the MasterTemp gas heater measures up. Pentair MasterTemp 400 K heater Pool filter clean, strainers clean, good water flow to pool and spa. You don’t need a fancy test meter to troubleshoot a pool heater. Equipment - Build, Use, and Repair. Pentair MasterTemp 400 natural gas heater won't ignite. Menu. new heater. It’s new to me, but approximately 12 years old. Back. Close. Call Anytime 480-648-0055. I have never been able to get the thing to turn on. Book Appointment Now. Top. Any suggestions would be greatly appreciated. I have backwashed and even chaged the pressure switch. Pentair Garden | Posted on Mar 31, 2018 | Be the first to answer. The front panel just has the Heater Service light on (and displays the current water temp). Pentair 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. It is a Teledyne Laars Lite 2 400 BTU. If increasing the temperature makes the heater turn on, then the thermostat is in good condition. Otherwise, you can use a multimeter to check if the thermostat is receiving power. 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. 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