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Bryan
Bryan, Home Appliance Technician
Category: Appliance
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Experience:  15 yrs. experience as a certified appliance technician.
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whirlpool duet dryer turns but coils will not heat up (model: gew9200lwo). I have check

Customer Question

whirlpool duet dryer turns but coils will not heat up (model: gew9200lwo).

I have checked continuity on the following: Thermal fuse, Thermasistor, all three sets of prongs attached to the heating element. I also have continuity within the heating coil.

The plug does have 220/240 volts.

The vent is allowing air to flow out.

The control board is sensing wet.
Submitted: 1 year ago.
Category: Appliance
Expert:  Bryan replied 1 year ago.

Hello, Thank you for using this service, I will be helping you with your problem today

your relay on the main control board needs to be checked. graphicremove one wire and see if you get 120 volts comming out of it when this is on dry cycle.

Customer: replied 1 year ago.


I must be missing something obvious. I can't seem to get to the circuit board. I removed the top and released the ribbons. Then I pulled out the control panel. That gave me a view of the back of the circuit boards. I spent about thirty minutes trying to figure out what tabs unlock the cover to get to the front.


 


Am I supposed to unscrew the individual circuit board to get to the relay? Or have I done this assbackwards?

Expert:  Bryan replied 1 year ago.
I think your looking at the wrong board, you seem to be trying to open the user interface. the control board is mounted on the side of the machine . Number 57 on this digram.
Customer: replied 1 year ago.


Okay, I just screwed up so the rest of this conversation is academic. I am going to rate you high whether I get this fixed or not.


 


I was working on the wrong circuit boards so I reinstalled them. I took the one on the side (57) loose, pulled out the negative wire and turned on the power. Before I could check to see if there was voltage the negative hit the frame and a bright flash, loud pop, and quick shock ensued.


 


So I am pretty sure that I have killed the board. My question now is, was the board the most likely culprit. If so I will go ahead and order a new one (I am really trying hard not to buy a new dryer, this has been a really good one).


 


Thanks,
Kenny

Expert:  Bryan replied 1 year ago.
wow, oh man, well theres not much in this that would cause no heat that you haven't checked already so that leaves the board. you may have just blown the thermal fuse this time I hope. recheck the thermal fuse to see if it blew. Thermal Fuse(NNN) NNN-NNNNMain Product View I cant think of anything else that would cause this not to heat.
Bryan, Home Appliance Technician
Category: Appliance
Satisfied Customers: 12060
Experience: 15 yrs. experience as a certified appliance technician.
Bryan and 4 other Appliance Specialists are ready to help you
Customer: replied 1 year ago.


Okay,


got the new board and installed it. The dryer worked for a few weeks (abou 10 loads) and today quit heating up again. I have checked everything else again (Thermal fuse, Thermasistor, all three sets of prongs attached to the heating element. I also have continuity within the heating coil.

The plug does have 220/240 volts.

The vent is allowing air to flow out.

The control board is sensing wet.)


 


Any chance this could be a bad board or is there something common that would be killing the boars?

Expert:  Bryan replied 1 year ago.
Wow thats hard to say. have you checked for 220 volts at the element itself ?
Customer: replied 1 year ago.


how would i do that? I checked continuity at the element


 

Expert:  Bryan replied 1 year ago.
on the element where the two wires connect check for voltage across the two. the dryer has to be running and the heat setting on high.

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