This means that the blower is not working or the pressure switch circuit has a short in it.
Goodman furnace won t ignite 4 blinks.
The goodman furnace may not be receiving an adequate gas supply if the glow ignitor turns on but the furnace cannot ignite.
You can solve this by cutting power to your goodman furnace for 30 seconds or by lowering your thermostat to what it was before you turned it up and then try to turn it up again.
Goodman furnace 4 red led blinks indicating high open limit.
1 led flash blinking on and off this means the furnace locked itself out because it tried to ignite three times and could not do so.
We have this problem happen before when the power went out it trips the limits so it doesn t burn up the blower.
Turn the furnace off and leave the house.
Find the gas supply valve next to or behind the furnace and rotate the valve to the open position typically by twisting counterclockwise.
It doesn t matter what speed the blower is running at but the furnace must have sole control of the fan.
Stop immediately if you smell gas.
This may be the case if your goodman furnace won t ignite but the light is on continuously.
All you need to do is locate the gas supply valve and rotate it in a counterclockwise direction to open it.
Your furnace will automatically try again after an hour of lockout.
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One of the most common culprits of a furnace that is having a difficult time lighting is a low gas supply.