Well you definitely have a weird one
Just so I understand the only thing that stops working is the timer. The unit will dry clothes with heat but cannot complete a cycle because the timer is dead. CORRECT?
From your earlier post
"TM" to "N" tested fine
"TM" to "H" was open
"H" to "A" was fine
Is some of the above a typo or do you have a different diagram than I have?
Mine shows TM to N, L to H and TM to A.
This is the way I believe the timer contacts should work
L to M Closed for all cycles except at OFF positions. Provides power to the motor
and one side of the timer
TM to B Closed only at end of cycles - runs the buzzer
TM to N Closed during complete TIMED DRY cycle. Also closed for a while at the
end of AUTO cycles - L to H is open then, this is the cool down time
TM to A Closed during Auto cycles - the sensor turns the timer on off as required,
open during Timed dry
L to H Closed during entire TIMED DRY cycle, Closed for most of the AUTO cycles
except at the end when there is a cool down time using TM to N. These
contacts provide power to your heat section and should not effect the timer.
TM to N must work because you say cool down does work. What does not make sense is these same contacts are used for TIMED DRY which does not work.
First thing I would do is disconnect the timer motor from the timer assy usually just spade lugs and clean them and reconnect them. Then measure the voltage across the motor while running Only thing I can think of is for some reason when your valve coils kick in the voltage to the timer motor drops to a level which is too low to run the motor
Good Hunting from a very puzzled guy | 
