Tip & How-To about Heating & Cooling

Furnace main burner lights then goes right off.

If your central heaters main burner comes on for a few seconds and goes right off this could help you. First you will need some steel wool (not a SOS pad) and a 1/4 nut driver. Turn the Heater OFF. Locate the sensor near the burner, it will have only one wire to it, also often yellow or white. The sensor is usually L shaped. Take the 1/4 screw out and remove the sensor and gently clean with the steal wool. This solves this problem 97% of the time.

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why a Goodman GMS80453ANA furnace lights up then it turns its self off after a few seconds?

could be an issue with the flame sensor. it sends a signal to main board once all burners have ignited. either, the flame sensor needs to be cleaned with steel wool, or the board isn't receiving the proper 3-5 milliamps. should be a flashing led light that tells you what error is present

Dec 30, 2014 | Goodman Heating & Cooling

2 Answers

I have a Goodman gas furnance. The furmance kicks on the glow rod lights and then the furnance shuts down after about 60 seconds it goes through the same cycle. The burners never come on. What's wrong?

Let's trouble shoot a few possibilities:

Can you confirm that your gas pressure/ supply is correct-- by lighting all of the range top burners at the same time-- Do they all light quickly, and burn to full height, without much of any yellowing at the flame tips? That should indicate you have god gas pressure and supply.

Now-- in the Oven itself-
When you light the BROIL burner-- does it's glow ignitor light up, and does that burner light off OK?

If it is only the main oven burner that is not lighting, are you able to remove the cover plate that covers it, and watch it light off? -- Any clues on whether or not the gas valve even open?

If NO gas flow, likely you need a new Main Oven Gas Valve-- Probably need to call your Gas Appliance service person.

Let us know if this helped

Mack B

Jan 23, 2011 | Goodman GMS90703BXA Heater

1 Answer

The pilot will only stay lit depressed, a few times I was able to keep the pilot on and start the main burner, once it goes on it onlt stays lit for aprox 20 sec

It sounds like you need to replace the thermocouple. It will cause the symptons that you describe. If it is just a flame rod then you may be able to just clean it with steel wool. Let me know what you find.

Aug 03, 2010 | Napoleon Heating & Cooling

1 Answer

ignition failure code on

Sounding like a flame proving device is failing to sense flame. Try to clean the device with some steel wool. It is located right next to the last burner looks like a thick wire. Take the steel wool and gently rub the carbon that has built up off. Should only take 4 or 5 strokes. Let me know it that did it. Ken

Nov 30, 2008 | Coleman Propane Forced Air Heater...

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