Question about Goodman GMS90703BXA Heater

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Furnace will not stay lit

The problem is not constant. Sometimes it works, and sometimes not.

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  • rdallen Dec 01, 2008

    Mod. GMH950703BXAA...Furnace ignites normally and runs for one minute, then the flame blows out. The ignitor comes on and it relights and runs for another minute or ninety seconds and blows out again. This continues until the set temp is reached. I replaced the thermostat and cleaned the flame sensor but problem still persists.

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  • 61 Answers

Sounds like a thermocouple, or flame sensor.
Are you skilled on working on appliances of this sort?
I am a goodman dealer and will need your model number.

Posted on Nov 30, 2008

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2 Answers

My pilot light will not stay lit. It lights and stays lit as long as I have the knob pushed in. As soon as I release the knob, the pilot goes out. The heater hasn't been used for at least 2 years.


The thermocoupler is shot. Its the little probe the flame keeps warm. It supplies .3V to the gas valve to keep the gas flowing. when you get one it would be a good idea to get two and leave one in the furnace compartment as a spare. remove the old one and measure the length of it as they come in different lengths. its ok if it is longer. I sometimes prefer a longer one because it makes it easier to install

Jan 06, 2015 | Heaters

1 Answer

Furnace sometimes does not ignite when thermistate is turned on. Why is this happening.


your ignitor is on its way out
same thing happens with gas stoves
doesnt get hot enough

Jan 05, 2015 | Heaters

1 Answer

Pilot on furnace wont stay lit


Sounds like the thermocouple is shot

Nov 09, 2014 | Dayton Gas Furnace Heater

1 Answer

My York furnace sometimes doesn't completely ignite


A noisy inducer probably is headed for replacement.

The igniter can produce a healthy glow and still be defective. Mine had to be replaced with a new, improved one.

The thermocouple could be defective even though it seems to open the gas valve when it should.

The heat sensor in the bonnet could be defective. That controls main blower operation.

The heat exchanger could be cracked.

Jan 10, 2014 | Heaters

1 Answer

Goodman furnace gmh95090cxac wont stay lit keeps clicking will lite then clicks back off what would be the problem


Hello, if the burners light but do not stay on for more than 10 seconds, I would clean the flame sensor. The flame sensor is a metal rod that is on the opposite side of the Igniter, sometimes it gets coated by oxidation and does not sense the burner flame and shuts the Furnace down. To clean to kill power to tje furnace, remove flame sensor and clean with a steel wool, then reinstall and start Furnce back up. If this does not work then most likely the Igniter is too weak to ignite the gas and will have ro be replaced.

Oct 29, 2012 | Heaters

1 Answer

When I tried to light my furnace, the electrical wires from the thermostat don't spark all the time, therefore my furnace won't stay lighted. What can I do to fix this?


Is this an older furnace where you have a pilot light? Are you saying the pilot light will not stay lit? If thats the case then likely you need a new thermal couple. That is what the pilot light keeps hot while it stays lit. It is a safety device that is there so your furnace will not come on if there is no pilot light present. Very common. Hardware store item. Need Furnace's make and model #'s.
If this is an electronically controlled furnace, you will need a service call.

Jan 13, 2012 | Heaters

1 Answer

Goodman dependable 92,7years old. Furnace works sometimes. Checked out by qualified technican. no problem found. Constant checks shows troubleshooting light blinks three (3) times. Help please. 3...


This indicates a open limit switch on the furnace, the heat exchanger is getting to hot therefore the limit switch is opening and not allowing the furnace to work properly. Did the techinician check the limit switch on the unit?

Dec 30, 2010 | Goodman GMS90703BXA Heater

1 Answer

Relatively new wall furnace suddenly stopped working.


if you are by passing stat at the gas valve and it is still not working,i would assume a bad control valve.

Jan 13, 2010 | Heaters

1 Answer

Cozy furnace


The pilot orifice could be dirty causing the pilot flame to be too small. Unscrew the pilot tube at the pilot assembly. The orifice is inside. Remove the orifice and blow it out with compressed air only. Reassemble and see if that fixes the problem. If the pilot flame is set too low, sometimes opening a door will cause a draft to blow out the pilot. If the thermocouple is good and the pilot flame is set properly, the control valve may be bad.

Oct 22, 2008 | Cozy Enclosed Front Console Heater 70,000...

2 Answers

Unable To Keep Pilot Light Lit!


I have a Williams top vent gravity wall furnace (model 5009622) and I had the same problem. I had to take the cover off the furnace -- screw on top and two at the bottom (open the access door and there is one screw on each side) to get to the reset button for the vent safety shutoff system. On my furnace it's on the left side toward the top of the unit. I pressed the little red reset button and it's been working ever since. If your furnace is properly installed and doesn't have bird's nest in the chimney, it should work fine. Good luck!

Mar 04, 2007 | Williams 2509612 Ceramic Mid-Size Heater

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