Amana Dryer No Heat on Automatic (Dryer-Less Dry) Setting

[ericrunyan]

Model Number: NED5100TQ1
Brand: Brand
Age: 6-10 years

Dryer works on all settings except More Dry to Less Dry Automatic Setting. When set to that there is no heat. Was told by a shop here that it could be the moisture sensor or the logic board or loose/broken connection. Should I gamble that it is the moisture sensor and replace, given that this part is not returnable? or what do others recommend?

[denman]

Attached is a wiring diagram.

This unit does not use a moisture sensor.
It slows down the cycle by only advancing the timer when the heater is on.
More dry /less dry involves a heater on the cycling thermostat.

Problem is most likely the timer.

Set the timer to where there is no heat problem,
Unplug the unit.
Measure across A to B on the timer, should be 0 ohms.