Question about Procom ML300HGA Heater

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Pro-com mn300pta with blower. pilot goes out after burner goes off

My heater works fine until the heating cycle stops, then the heater makes a click sound and the pilot goes out. this only happens when we use the blower.

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  • redpearl Jan 05, 2008

    THIS IS A NEW ONE, USED FOR 2 MONTHS

  • redpearl Jan 10, 2008

    THIS IS A NEW HEATER.

  • garwood11 Jan 15, 2008

    This is the same thing that happens to mine. it relights fine and heats up but when it reaches temp the pilto goes out.
    Gary

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Heaters are dangerous spend some money on a new one and you will be healthier. or try to be a hero and blow yourself up.

Posted on Jan 04, 2008

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1 Answer

My heater works fine until the burner shuts down at which time the pilot also goes off and naturally it can't relight.


Check pilot is not blocked .Short pilot going off when burner does .check flame sensor and thermocouple

Dec 10, 2017 | Heating & Cooling

1 Answer

Gas wall furnace pilot goes out when burner turns off.


When the main burner turns off, does it make a whoosh or pop? If so, this would be the issue causing the pilot to be disturbed. And have you tried to adjust the pilot/thermopile strength, if possible? A stronger pilot may help. Now if the main burner slowly goes out, and the pilot also slowly goes out, and also slow to ignite, and you've replaced about everything else, it may be the gas valve itself that has/is giving up. Gas is impure and causes a sticky residue. And if the main burner is "slow to act", this tells me the piston that's inside the valve is slowly opening or closing, and may be the reason the pilot is acting up. Make sure you check the outlet to your flue pipe also for obstructions. If the unit doesn't vent properly it can have more heat in the flue. That heat can have a downward rush when the burner goes out, kinda like forcing air through a clogged tube. And when you quit forcing the air, some of it comes back at you. Before condemning the valve try to check all else as you have done with the thermopile and such. Please work safe and I hope this helps.

Oct 09, 2017 | Williams Heating & Cooling

1 Answer

Pilot light goes out after thermostat kicks off


If it's a direct spark ignition type heater maybe that's how it's designed to.work .When called for heat pilot open allowing gas then ignitor spark and ignite the pilot then gas valve open and allow gas through burner then unit fires off .
Once temp is met pilot valve closes and pilot out .

Feb 19, 2018 | Desa International Heating & Cooling

1 Answer

My gas furnace pilot light goes out after reaching temp, the blower keeps going and blows out pilot light. then the blower stops. it will light back up after motor stops


The room air blower should have no effect on the pilot unless there is a crack in the heat exchanger. Do you notice a change in the pattern of the main burner flame when the blower turns on? If so, you have major issues. If not, it could be a dirty pilot orifice or a weak thermocouple.

Jan 14, 2010 | Heating & Cooling

1 Answer

Pilot light will stay on until the burner shuts off. Seems to blow out the pilot each time the burner shuts off.


Need to check the vent tube for restrictions
and check to see if the blower motor air is not blowing out the pilot if it is the blower motor air blowing out the pilot nthe the heat exchanger may be cracked and could be dangers

Dec 01, 2009 | Vanguard International Blue Flame - Medium...

1 Answer

The pilot light & will stay lit. untill the burner cycles on/off


MAKE SURE THE BURNER TUBE AND ORIFICES ARE CLEAN. MAKE SURE YOU HAVE THE PROPER LP PRESSURE.

Oct 05, 2009 | RTO Atwood Water Heater - 6 Gal LP

1 Answer

Pilot and Burner shut off at same time at various run times.


sounds like your pilot saftey is working.the pilot flame heats a device called a thermacoupler which gives a signal to the gas valve letting it know its ok to open main valve. you may need a new thermacouple , might have a dirty pilot orfice or a problem with gas pressure or worse case a cracked heat exchanger in any case in less you have some type of training you should call a pro

Feb 05, 2009 | Coleman Propane Forced Air Heater...

1 Answer

Pilot going out


sounds like a bad thermostat.I am not to familiar with this problem.
sorry i could not be more help

Nov 23, 2008 | Heating & Cooling

1 Answer

Pilot goes out after heating cycle


Check regulator on the unit.
Check pilot unit on the heater
use soapy water to check for leaks if see bubbles turn off main gas supply valve.
always turn off gas supply before any checks or repairs are made
when all else failes call your local gas provider to check heater and gas supply

Nov 22, 2008 | Rinnai Desa Vent-Free Infrared Gas Heater:...

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