I have a problem with the heating coil not always turning on when it should. The heating element has continuity. I have replaced the operational thermostat that is mounted on the fan housing. Sometimes the heating element will come on and sometime it will not. I have temporarily bypassed the temperature limiting thermostat and the safety thermostat but it did not fix the problem.

In order to better see what was going on, I removed the top panel and the tub. I blocked the micro switch for the dryer belt open so that the motor would run with the tub and belt removed.

Regardless of which setting I used on the timer, the heating element would work part of the time when I turned the start switch on and part of the time it would not. The motor always ran when I turned on the start switch regardless whether the heating element came on or not.

I could even leave the timer setting and temperature settings untouched between tries and sometime the heating element would come on and sometime it would not. I even used the door switch to turn it off so that I would not be turning the timer to turn it off and then turning it back to the same setting.

I don't have a wiring schematic for this dryer so I am at a loss as to what to check next. If you know what could be causing this problem please let me know.

Thanks, Jack