This is what i see in the furnace sequence of operation.
Goodman furnace ignitor doesn t glow.
Find the gas supply valve next to or behind the furnace and rotate the valve to the open position typically by twisting counterclockwise.
An open limit or thermostatic rollout will not allow the furnace ignitor to glow until the furnace cools down.
Goodman furnace igniter glows but doesn t ignite.
Furnace ignitor doesn t glow when the stat calls for heat the blower runs for a while then shuts down then the inducer runs for a while then shuts down at no time does the ignitor glow.
Yes everything else can work and the control board is bad.
The thermostat calls for heat the inducer motor starts running but the ignitor doesn t glow.
The furnace hot surface ignitor does not glow.
Draft inducer motor starts.
Pressure switch attached by a small plastic or rubber tube senses the negative pressure produced by the draft inducer and closes.
As there was sufficient voltage to the gas valve i was advised by a tech over the phone to replace the gas valve and did so it fired up about three times and each time it didn t reach the temperature desired.
The heat relay is not allowing voltage to flow to the igniter but is allowing everything else to work.
I put a meter on the wires going to the ignitor and found no power during the start up sequence.
Again if it is receiving voltage the igniter is bad if it is not receiving voltage then the control board is bad.
Stop immediately if you smell gas.
When a furnace has a bad ignitor.
The other half of the time the thermostat calls for heat the inducer fan comes on the pilot valve opens the glow plug glows but the pilot will not light.
Hello my furnace isn t working.
If the furnace operates for a while then shuts off and will not ignite again for 20 minutes then i would suggest checking the limit and rollout switches to make sure all of them are staying closed.
When i hear the click of the gas coming on i can light the furnace with read more.
The goodman furnace may not be receiving an adequate gas supply if the glow ignitor turns on but the furnace cannot ignite.
As usual the valve closes the glow plug goes out the inducer fan will continue to run and the glow plug comes on again after a few minutes.
