Question about Procom MN100HPA Heater

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Hi my heater will not stay lit the pilot light is white not a blue flame,it will light but after a min or two it goes out can you help? thanks

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Check thermocoupler!

Posted on Oct 05, 2010

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Posted on Jan 02, 2017

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My blueflame gas heater won't stay lit


So we are talking about the same won't stay lit I will describe both ways. One is when you lift your fingers off the knob it goes out that instant which is probably the thermocouple needs replaced,look to make sure the tip of the thermocouple is in the flame of the pilot light first. The secound version of it is it goes out in a few minutes up to a few hours.The second version is most common.There is a part called a Thermocouple that is mounted next to the pilot light, it is around 3/16 of a inch diameter 1 to 2 inches long and should be mounted so the tip is in the flame of the pilot light. This is what tells the gas valve the pilot light is burning. If any dust ,cat hair ,dog fur what have you gets around the base of the hole the gas from this pilot light comes out of it will bend the gas, which move the flame so it does not hit the thermocouple like it should, this is below the flame so what ever is in there diverting the flame dose not burn up.A draft from a fan or door could do it also.I have used a procom ventless heater as my only heat for 7 years and have to blow it out twice a year. I bought a new thermocouple at the same time I bought the heater to have in the closet in case it went bad some night, it is still hanging there .Because it sucks air in from the bottom past the flame and out the top everything in the air gets burnt into a fine ash dust. So if you use compressed air to blow out your unit you might want to hold a wet towel up in front of it hoping a lot of that white powder dust will stick to it instead of flying around the room . My flame always looks so much better ,less orange and more blue after this .

Feb 10, 2014 | Procom Heating & Cooling

1 Answer

I have a Mr Heater infra red propane wall heater. My problem is it turns itself off (pilot light) after running for an hour or two. I have no problem getting it turned back on but for some reason it d


Your pilot flame should be blue with a small yellow tip, and it should cover the thermocouple (a small rod in front of the pilot light). If the flame is too small and doesn't cover the thermocouple, it may be adjusted too low, or you have low gas pressure or you have a leak in your gas line coming in to the heater. If the flame looks like a lazy yellow flame, you are probably not getting enough air to the flame. Check that your air openings around the pilot are not clogged up. If the flame looks like a waving blue flame then you probably have excessive draft at the pilot. If the pilot flame looks good and covers the thermocouple, then the thermocouple might be bad. Best of luck. I hope I have helped.

Nov 23, 2013 | Heating & Cooling

1 Answer

The pilot won't stay lit on gas hot water tank.


Make sure thermocouple tip is seated inside the burner flame.
Make sure thermocouple is not overtightened. Finger-tight + 1/4 turn.
If the pilot lights, then ECO energy cut off is not tripped, but gas control valve might be bad.
Check color of pilot flame: it should be strong and clear blue.
If pilot flame is weak, or color of flame is yellow-orange: Clean pilot orifice and burner and combustion parts on yearly basis.
Clean air intake screen if applicable.
Increase air supply to water heater. Open a window and see what happens.
Check for adequate draft going up chimney using match under vent hood to see if smoke drafts immediately upwards.
Bleed air out of gas line.
Check gas pressure.

Open following links for troubleshoot resources:
http://waterheatertimer.org/pdf/Pilot-light-will-not-stay-lit.pdf
http://waterheatertimer.org/pdf/Pilot-outage-troubleshooting.pdf
http://waterheatertimer.org/pdf/Vent-spillage-test-atmospheric-gas-water-heater.pdf
http://waterheatertimer.org/How-to-install-gas-water-heater.html#troubleshoot

Sep 21, 2011 | Water Heaters

1 Answer

Rheem 22V50F1 pilot won't stay lit. Changed thermo couple & it lit, ran then went out. Let it sit overnight & it lit, ran then went out. What next? p.s. The unit is 5 years old. Thanks


If pilot lights and flame is robust and clear blue, and pilot goes out later, then some suspects can be excluded: air in gas line, low gas pressure, thermocouple is overtightened (finger-tight + 1/4 turn), thermocouple not positioned correctly in the flame, dirty pilot tube.
If flame is yellowish and small: then clean pilot tube and combustion parts.
http://waterheatertimer.org/How-to-install-gas-water-heater.html#clean
Remaining suspects can include: air in gas line, low gas pressure, bad gas control valve, tight house so household vent fans pull air down water heater vent that blows out pilot, hot attic with inadequate ventilation, water dripping down vent.

Open following links to read troubleshoot resources.
http://waterheatertimer.org/pdf/Pilot-light-will-not-stay-lit.pdf
http://waterheatertimer.org/How-to-install-gas-water-heater.html#troubleshoot

Aug 16, 2011 | Rheem 50 Gallon FVR NATGAS Water Heater...

2 Answers

Pilot light will not stay lit.


More than likely the thermal couple is defective. The thermal couple is a safety device that shuts the gas off if the pilot goes out. If it is defective the pilot light will not stay lit. The thermal couple is the device that the small copper line goes to. It is mounted beside the pilot flame and the flame much touch the TC for it to work. If the flame is not touching the TC bend it until it is in the flame. If it is touching the TC then replace it.

Jul 28, 2011 | Whirlpool Water Heaters

1 Answer

Pilot light won't light the low flame or stay on


If the pilot light will light at all but not have a good strong flame I would remove pilot assembly and clean it thourghly,being careful not to damage pilot orifice. Reinstall pilot and seeif you have any improvement. If pilot still won't stay lit I would replace thermocouple being careful to make sure top inch or so is in pilot flame. Hope this helps. Thanks

Nov 20, 2010 | Blue Rhino Heating & Cooling

1 Answer

How do I fix a pilot light that will not stay lit?


Check the gas valve. Sometimes the springs in the valve can wear out.
Another thing is the pilot itself. Inside the pilot is a little rod that stays heated to ingnite the igniter. It can become dirty or corroded and won't allow the pilot to stay lit.

Apr 19, 2010 | Vanguard International Blue Flame - Large...

1 Answer

Wall mounted CBN30T, pilot goes out


IF its balance flue it could be blocked . Burner or orifice blocked lack of air to pilot slightly blocked thermocouple defective .

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