View single post by marvinmartian
 Posted: Fri Jun 26th, 2009 02:46 am
PM Quote Reply Full Topic
marvinmartian

 

Joined: Thu Jun 25th, 2009
Location:  
Posts: 15
Status: 
Offline
 OK, this is one of those dryers with the electronic control pad on top -- everything's a touch control and it looks like you could land a UFO with it. Electric, front load, lint screen at bottom of door.

Here's what it did and what it still does:
Select any setting and time and hit START button. When you hit the start button, there is an audible click. Everything lights up like it's working. The timer counts down properly. The 'drying' indicator lights, so it even thinks it's doing its job. Alas, there is no tumble. I popped the kick board and found that the belt was intact and properly threaded (the belt iis 2 months old -- replaced at same time as drum wheels). The motor, however, was not turning.

Here's what I've checked and replaced thus far:
I have checked the voltage at the wall: 240V.
I have checked the voltage at the dryer block: 240V.
I have checked the power cord and its connections: good.
I have checked the door switch (yes, I removed it first): good.
I have checked the thermal fuse, post-removal: good.
I have NOT checked the thermistor next to it (have no clue how I'd get it to 196 degrees).
I have checked the relays next to the control board: good.
I have inspected the control board for burned-out components or scorching/burning: negative.
I have replaced the motor and verified that I did not screw up on the wiring (the replacement is not an exact dupe of the original): does not fire up.
I removed the broken belt switch and tested it: good.
I bypassed the broken belt switch and tried to get the new motor to turn: does not turn.
I purchased a replacement idler wheel but did not replace it -- the tension looks fine and the original is not wobbly.

Tonite, I decided to work backwards a bit. I checked the voltage across pins 2 & 6 on the power harness for the motor, and I measured 89 V. So I figure I know why the old and new motors aren't turning -- not enough juice.

Can anyone give me some clue what to check next? I'm stumped and my girlfriend is NOT pleased that I'm not anxious to replace this dryer. It's sort of like an old friend that hasn't ever given me any trouble I couldn't fix....until now.

Thanks!