Hello, I have a kenmore 110.72822101. It will glow, then ignite for about 30 seconds then cut off. I have replaced theradiant sensor, the thermal cut off, the thermostat, and both coils. We have done the continuity test and everything looks fine. We have taken off the exhaust hose and it continues to do the same thing. If you have any ideas, please let me know. We are at a loss!
Thanks,
Jody

Does the blower come on?

Yes, the blower comes on, everything works great except it doesn't heat

On the back of the drum you should have 2 vents. It just sounds like airflow problem to me. One hot air inlet and one drum air outlet. Are they both clean and open? Sounds like you have replaced everything but the gas valve? Could be the soleind on valve is bad.

Sounds like it could be airflow problem On back of drum you will see 2 vents. Air in and air out. Are they both clean and open? Test the ignitor. A good one will show between 50 and 600 ohms. Is the sensor clean? Sounds like you have replaced everything but the gas valve.