Carrier Furnace Ignitor Not Glowing

This is typically the problem if you can hear your furnace click on but it does not fire up.

Carrier furnace ignitor not glowing.

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. Here are a few steps to check your ignitor and determine if it needs to be replaced. Turn the furnace off using the thermostat. Find the gas supply valve next to or behind the furnace and rotate the valve to the open position typically by twisting counterclockwise.

The goodman furnace may not be receiving an adequate gas supply if the glow ignitor turns on but the furnace cannot ignite. Make sure the furnace as at room temperature. Stop immediately if you smell gas. 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.

Turn off the furnace. 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. They last about 10 years. Turn the furnace off and leave the house.

If too much water backs up into the draft inducer it will not allow the pressure switch to close. I put a meter on the wires going to the ignitor and found no power during the start up sequence. A technician told us he changes these all the time. 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.

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. A faulty or dirty ignition or sensor is a relatively easy fix so follow these steps and you may be able to solve the problem yourself. The pilot light or ignition sensor is usually the most common issue when your furnace will not ignite.