I've checked all the sensor for connectivity and found all okay. I've checked the burner sensor connectivity and found it okay.
The igniter glows but I have no flame.
I suspect the gas coils.
What is the part number, how much does it cost, and how easy is it to replace?
Answer Hello J.K.,
The ignitor may be breaking down. You need to test the amperage through the ignitor. There has to be from 3.2 to 3.6 amps in the circuit to build up a strong enough electromagnetic field to open the gas valve. If there isn't enough current flow, (amperage), the ignitor will have to be replaced. You can sometimes tell from the color of the ignitor. When the ignitor turns red or orange, it isn't drawing enough current. The ignitor has to turn almost white hot to draw enough amperage to open the gas valve. The gas valve coils should test as follows give or take 10%: Terminals 1 to 3 = 550 ohms. Terminals 1 to 2 = 1350 ohms. Terminals 2 to 3 = 1900 ohms. Terminals 4 to 5 = 1300 ohms. (as a note terminals 4 and 5 are on the coil with only two terminals).