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My Goodman gas furnace will run, but will not ignite. I do see a red light blinking three times through the peep hole.

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Hot surface ignitor is my guess

Posted on Nov 03, 2008

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1 Answer

Induction motor runs/no ignition/red light on


If inducer run and igniter is not come on. 1) check igniter for any damage. 2) check pressure switch to make it close as soon as the inducer run. if it not close check the small tube that connect to it for any restriction( mostly inside the inducer compartment) clear it and restart the unit.

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My Amana GUI090B30B furnace will not ignite. The ignitor glows then the valve releases gas but the gas does not ignite. The ignitor goes out and the valve shuts after a second or two of trying to ignite...


Hello, it is possible that even tnough the ignitor is glowing it might be too weak to ignite the burners. I would cneck the resistance of the ignitor with a multmeter, should be between 40-90 ohms typically

Nov 28, 2011 | Heating & Cooling

1 Answer

Furnance fan works,but the burnrs won't ignite


Hello my name is Heath it will be my pleasure to assist you. First thing to do is go to the furnace and look in the small peep hole in the lower blower door and see if there is an led light that is flashing a certain number of blinks record the number and look for a diagnostic chart on the inside of the blower door or the upper side panel of the furnace if there is no flash code present you can try resetting the power to the furnace and see if the furnace will fire up.

Sep 19, 2011 | Heating & Cooling

1 Answer

I have a goodman propane furnace, model # GMPN080-4 that lights for about five seconds and then cuts off. It does this three times and then stops all together. Tried lightly sanding the flame sensor and it...


The goodman furnace will try and light three time before it faults out for safety reasons. Adjust the flame sensor so that it is closer to the flame or actually in the pilot flame. If the flame sensor is inside the pilot flame and still does not stay lit, your flame sensor is probably defective and should be replaced. You can get one at Ferguson's counter sales.

Dec 12, 2010 | Heating & Cooling

1 Answer

My central heating is on lockout and the burner is with red light


A sampling of various codes on a furnace

Read one LED flash that stays on continuously to mean your furnace has no signal coming from the thermostat and will not operate. Turn the power off and check the thermostat for improper settings or connections.

Interpret one LED flash that blinks on and off to mean your furnace has locked out because it could not ignite after three tries, and must be reset. Interrupt power to your furnace for 20 seconds or lower the thermostat so your furnace does not try to heat, then reset the thermostat to the previous setting. After one hour of lockout, your furnace will automatically reset itself and try to operate as usual.

Decipher two LED flashes to mean the draft blower is not working, or your furnace has a short in the pressure switch circuit. Turn off the furnace power and repair a short or replace the pressure switch.


Read three LED flashes to mean your furnace has an open pressure switch circuit or it has an induced draft blower operating. Check the pressure switch hose of your furnace for blocks or an improper connection. Also, look for blockages in the flue, and tighten any loose wiring.

Translate four LED flashes to mean your furnace has a primary limit circuit open, possibly from loose wiring or blocked filters. Check and clean filters, tighten wiring and check the flue for blockages.

Interpret five LED flashes to mean your Goodman furnace senses a flame without a call for heat. This could be from a gas valve closing slowly or a burner flame lingering.



Read seven LED flashes as a warning of a low flame sense microamp signal. This could happen with a coated flame sensor or a lazy flame from poor gas pressure. Turn off the power and adjust the gas pressure according to the information on the rating plate.



See eight LED flashes as meaning an igniter circuit problem due to a bad igniter or an igniter connected improperly. Replace the bad igniter or check the ground wiring, making necessary corrections.



Decipher nine LED flashes to mean the high-stage pressure switch circuit will not close during a high-stage-induced draft blower operation. Your furnace may have a pinched or blocked pressure switch hose, a blocked flue or loose wiring.

Read continuous flashing on the LED to mean your furnace has a reversed polarity of 115 volts. Turn off the power and correct the wiring polarity after reviewing the wiring diagram.

Dec 02, 2010 | Heating & Cooling

1 Answer

We have recently installed a Goodman GMH950904CX furnace. The blower comes on, shortly thereafter the glow igniter comes on, but the gas does not come on. I noticed that the 3 amp fuse was blown. After...


1 blink is ignition failure check that the gas valve is in the on position make sure you have gas at the gas valve if it is not that then its the flame sensor it could be dirty . the only way to blow a fuse on the circuit board is through the t-stat wiring ? hope this helps

you only need a common wire at the t-stat if you are using a digital t-stat.

Nov 16, 2010 | Heating & Cooling

1 Answer

My gmp series heater comes on for 30 seconds to purge exhaust and goes off for 2 seconds and starts over red light flashes constantly gas valve never opens igniter doesnt heat up


Sounds to me like your pressure switch is bad or the hose has a hole in it. If the pressure switch does not close, the unit will start. It will try again until it goes into lock out. normaly three times.

Oct 13, 2009 | Goodman Heating & Cooling

1 Answer

Goodman GMS90904CXA Wont ignite, light blinks 3 times


I had the same problem, I had to remove the lower black rubber stopper right next to the exaust fan and hook up a drain to the unit, as soon as the water drained out the furnace fired right up.

Nov 19, 2008 | Heating & Cooling

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