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I have a hayward modelh100idi above ground pool heater we can't get it to stay running it fires up but go the flame goes right back out (propane heater)

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You need a flame sensor,its located where you see the flame touches,lightly sand with fine sand paper,if it still doesn work you have you replace it.if this helps please give me a fix ya vote

Posted on Jul 15, 2008

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When i compress the propane knob for the pilot light, the whole element has propane run through it. Then when i let go of the pilot to run gas to the element, the flame goes out...? Pls help. Its brand...


Hold the knob down for at least three minutes after lighting the pilot. This give the thermocouple plenty of time to heat up and should stay lit.

Sep 04, 2011 | Heating & Cooling

2 Answers

Pool heater: Pentair minimax 250 M millivolt propane. Problem: Burner does not want to stay on - cuts out or does not even come on when using switch. Technicians have already tested all electronics and...


Hi there

On these heaters there are a number of safety cut out switches and some are not obvious,
1. If fitted I guess they have changed the thermocouple ( this sits in the pilot flame and connects to the gas valve) if they have changed the gas valve.
2. There is normally a control link to the heater to prevent it starting if the pump is not running or the pressure is too low. This is usually a wire that runs through the pump motor overload(if fitted) and the inlet or outlet water pressure switches ( if both fitted) and then to the time clock (again if fitted) and to the thermosts on the heater.

I hope this helps, but please come back to me if you need more info

Regards
Gordon

Jun 16, 2011 | Pentair Heating & Cooling

1 Answer

Furnace goes through start up sequence normally, ignitor fire, gas comes on, ignitor goes off, but gas only stays on for about 10 seconds then system restarts all over again.


Not knowing the make or model of your furnace I can only guess that either the flame rod is dirty or bad, the flame spreader tray is dirty or you have a bad ground off of the PC board. You could also have a bad intermittent pilot if your system has one. The flame rod is located in front of the burner at the last one that fires up. It will have only one wire going to it. The flame spreader tray connects each burner together and the gas flows down it.

Mar 12, 2011 | Heating & Cooling

1 Answer

I have a pro heater 50,000 to 80,000 Model # A661767 propane, and when I try to light it it comes on with the button held in but when I let go of the button after one minute it goes out and will not stay...


It sounds like you have a thermocouple problem. Locate the thermocouple and make sure it is in the flame while the pilot is lit. If the pilot flame is weak, try to correct. Some pilots have a small air hole in the tip a short distance back from the flame that can get clogged with dust. Some don't have this hole. Your thermocouple may just need to be cleaned. This can be accomplished with some fine steelwool or emory cloth. Let me know if you have any questions.

Jan 02, 2011 | Heating & Cooling

1 Answer

Raypak pool/ spa heater Low NOx Model 407A: Will take long time to fire, stays in spark mode, and then when iit does fire, it shuts off and takes long time to fire again. If you can get it going it stays...


The pilot is not proving to the control.Check that there is a GROUND/EARTH stake to the pool heater in the dirt.The pilot assembly needs a ground wire too the control.

Sep 16, 2010 | Heating & Cooling

1 Answer

I have a vent-free Glo warm propane stove (as in fireplace type).Pilot is yellow and stays on enough to get fire going, but then whole thing shuts off. Does it need new part/cleaning?


Hi, and yes it does need to be cleaned. The pilot flame should be a nice strong blue with just a little yellow at the tip.You should have a flame sensor next to the pilot that should be engulfed by the pilot flame.Should be made of ceramic and have a metal rod coming from end into flame. Clean the metal gently with steel wool, not sand paper. Try this to see if it solves the problem and let me know if I am wrong as far as having this sensor. Clean pilot anyway, as flame is not correct.Get back to me, Sincerely,
Shastalaker7

Nov 18, 2009 | Heating & Cooling

2 Answers

Dometic/Duotherm propane furnace won't fire up


If this unit has a spark ignition you may just need to clean the flame sensor. It is a metal rod protruding in the path of the flame.

Feb 10, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

I have a Desa CJ26PL Propane heater, The pilot stays on but when I turn the knob for it to come on, it goes out, what am I doing wrong?


The bar or rod that is in the pilot flame is called a thermocouple. It's probably bad and needs to be replaced. You can get it at a hardware store.

Jan 18, 2009 | Heating & Cooling

1 Answer

I have a problem with my heating system. It is about 10 years old and has had the ignitor, combustion blower motor, and programable thermostat replace in it's lifetime. The system worked great last year....


sounds like its not proofing flame. it has a sensor usually like a needle sticks out into the flame that tells the gas valve the flame lit and is burning so its ok to keep sending gas, if its fails to proof flame then burner shuts down, then it tries to relight 3 times then locks out on fail safe. the blower will sometimes run continually once that occurs to highlight a failed condition. every time you reset it will try again 3 times then shut down. lp gas is very dangerous, even i do not work on it as the gas acts like gasoline and lays around. not like natural gas that disperses well. if you see the flame sensor try gently cleaning it with a little emory cloth. also a loose ground can cause this. check tio be sure any green wires are snug , they actually flow volts to ground through the flame on some to proof, thats why no ground no flame. if that fails then the board is most likely problem. change wire for wire , or get generic replacemant and follow directions exactly. good luck.some ignitors act as a flamre proofer as soon as they are done igniting! rarely do they fail to perform both funtions.

Nov 20, 2008 | Heating & Cooling

1 Answer

Frigidaire


START BY CHECKING THAT NOTHING IS IN THE VENT PIPE ON TOP OF THE FURNACE.IF THATS CLEAR,CLEAN THE FLAME SENSOR WITH STEEL WOOL.IT IS USUALLY LOCATED DIRECTLY IN THE FLAME IN FRONT OF ONE OF THE BURNERS.

Dec 30, 2007 | Heating & Cooling

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