Question about Procom ML300HGA Heater

1 Answer

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.

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert that hasĀ over 10 points.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 18 Answers
Re: pro-com mn300pta with blower. pilot goes out after...

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

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

Tempstar DC90 pilot light or burner keeps going out. The furnace will run continuously. Even if I turn heat off at the thermostat. I have to kill power at the panel box to get it to shut off. Then I've...

The reset button near the ignitor is a high temperature limit safety switch. When the furnace gets too hot and the manual reset limit switch is tripped, it most likely goes into a 'safe' mode where the gas control is locked out electronically and the blower is made to run continuously to rid the heat exchanger of the excessive heat. This will continue until the reset is pushed and the power is cycled off. It will remain an endless cycle unless the reason for the overtemperature condition is not corrected.

Your furnace 'temperature rise' is getting too high due to a lack of air across the heat exchanger for whatever reason. Some of those reasons could be a restricted air filter or a blower motor that's cycling improperly on its internal winding thermostat. You could also have a dirty air conditioner 'A' coil (evaporator) on top of the furnace restricting the air flow. Nevertheless, you are going to have to have it serviced by a reputable service company's technician to correct what's wrong.

Nov 13, 2014 | Heaters

1 Answer

Pilot and burner light then gas shut off model 7900

How many degrees before it reaches desired temp, does it shut off? A thermostat is designed to shut the furnace off a couple/ few degrees before it reaches set temp. It has what is called a heat anticipater, which shuts the burner down, and lets the blower use the remaining heat from the heat exchanger to bring it up to desired temp making it more efficient. If it is more than a few degrees, replace the thermostat. You can jump out the red and white wires to confirm the faulty thermostat. If by doing this, the furnace never shuts down, until you separate the red and white wires. That confirms a faulty thermostat. Hope this helps someone.

Oct 06, 2014 | Coleman Propane Forced Air Heater...

1 Answer

I am having a problem with a cbn 30t wall mount heater with the front cover off the unit works fine when the front cover goes on the pilot flame gets erratic then goes out. if I have the front cover on and...

I worked on plenty of them. Usally it is the termocoupling needs replace. It's easy to replace and you can pick that up at Fagers, Michells, or a heating and plumbing store.

Nov 02, 2013 | Desa International CBN30T Central Heating...

1 Answer

Lennox G20 gas valve switches off then on Intermittently?

This could be a dirty flane sencor of the pressure switch check hoses are tight and not spilt , try jumping out the pressure switch see if that makes it work also check air fliter is clean .

Feb 11, 2013 | Heaters

1 Answer

Furnace blower stays on constantly, only goes off when I tap the side of the furnace. Burner cycles through fine, but the fan just won't shut off.

Sounds like a bad blower switch or relay. Without a make or model number of your heating system I can only guess.

Jan 14, 2010 | Heaters

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 | Heaters

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

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 | Heaters

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:...

Not finding what you are looking for?
Procom ML300HGA Heater Logo

Related Topics:

106 people viewed this question

Ask a Question

Usually answered in minutes!

Top Procom Heaters Experts


Level 3 Expert

1751 Answers

Dan Webster
Dan Webster

Level 3 Expert

8147 Answers

john h

Level 3 Expert

6323 Answers

Are you a Procom Heater Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides