Goodman furnace, 1 red flash ignition failure, wont light

Old 03-07-17, 09:24 PM
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Goodman furnace, 1 red flash ignition failure, wont light

Have about a 15 year old goodman furnace I get a 1 red flash, ignition failure..Have replaced the thermostat, electric ignitor, gas valve, wired limited switch over from heating chambe...When I turn it on, everything turns on and blows gas, but no spark...But will work if I light it with a newspaper...Runs perfect like that until room temp is reached, have already replaced thermostat 3 times already with no luck.
Old 03-07-17, 10:08 PM
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Welcome to the forums.

A one flash means the furnace is under lockout.
You'd need to turn power off and then back on. Now watch for the trouble code.

Spark ignition on a Goodman ?!?!?!

Going to need the model number for that furnace.
It's inside on an ID tag on the sidewall by the burner.

If you are saying it has a hot surface igniter that is not glowing..... but you can light the furnace..... that's going to be wiring to the igniter or a defective relay on the control board requiring board replacement.
Old 03-08-17, 03:22 AM
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First, please stop replacing parts. You'll have more money tied up in random parts then you would calling a tech to diagnose it.
Do you have and know how to use a meter? What model Goodman is this?

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