My dryer is taking 2-3 cycles to dry completely. There was a lot of buildup in the vent, but cleaning didn't fix it. There is heat initially, but it doesn't heat up after that. I've watched the flame and it seems to burn as expected.

I've checked the Thermal Fuse (#39 on diagram), the Internal Bias Thermostat (#41), the Thermal Cut-Off (#12), and the Thermostat 205*F (#34) and all show continuity.

The gas valve coils show 1278 Ohms for the one with two terminals. For the three terminal coil, I show 1383 Ohms across the left/middle and 562 across the left/right.

The ignitor shows 62 ohms and the flame/radiant sensor shows continuity.

The timer is acting weird. In Auto Dry, the timer never advances. In Timer mode, it advances even before the start button is pushed as long as the door is closed. I've heard that the timer is rarely the problem. Is there any way to test it before replacing it?

Anything else I should check? Thanks.