Carrier Furnace Ignitor Not Glowing

Turn the furnace off and leave the house.

Carrier furnace ignitor not glowing.

Like many gas furnaces our furnace uses this hot surface ignitor it lights up like a glow plug every time the burner needs to light so it cycles hot cold thousands of times. You might smell some gas. The ignitor did not glow the flame sensor a small metal probe about 1 8 in diameter with a white porcelain base does not sense the flame so after 8 to 10 seconds the hissing sounds stops with no ignition of gas to heat your home. Also all of your limit controls and other safety devices must be closed a closed circuit between the two connections to allow the furnace ignitor to glow and start the ignition process.

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. Here are a few steps to check your ignitor and determine if it needs to be replaced. If too much water backs up into the draft inducer it will not allow the pressure switch to close. Turn the furnace off using the thermostat.

It eventually cracks and burns out like a burnt out light bulb. Make sure the furnace as at room temperature. They last about 10 years. This is typically the problem if you can hear your furnace click on but it does not fire up.

In order to check the ignitor by testing the circuit and inspecting the furnace for visual damage the furnace must be set at room temperature. The goodman furnace may not be receiving an adequate gas supply if the glow ignitor turns on but the furnace cannot ignite. Stop immediately if you smell gas. Make sure your water drain on a 92 furnace is open.

Turn off the furnace. A technician told us he changes these all the time. The pilot light or ignition sensor is usually the most common issue when your furnace will not ignite.