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FIXED DV42H5200EP Samsung Dryer Main board smoked

Jeffs_62

Premium Member
Joined
Jan 26, 2020
Messages
6
Location
Leavenworth, Washington
Model Number
DV42H5200EP
Brand
Samsung
Age
1-5 years
Just a curious thing that I wanted to share.
Replaced the thermistor in my dryer, and as soon as I turned it on, one of the solenoids in the main board smoked. Any thoughts on why this might happen?
 

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Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
113,050
Location
McMullen Valley, Arizona
Why did you replace the thermistor? What was wrong with your dryer to begin with?

What is the part number that thermistor you replaced?

Jake
 

Jeffs_62

Premium Member
Joined
Jan 26, 2020
Messages
6
Location
Leavenworth, Washington
I replaced the thermistor because it ohmed at 16.691. The dryer would not turn the drum or heat when pushing the start button. I had no error codes.

I do not know the part number of the thermistor I replaced. It came out of a parts dryer that I had.
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
113,050
Location
McMullen Valley, Arizona
Was the parts dryer the exact same model number as the one your working on?

Here's the thermistor for DV42H5200EP:
DC32-00007A Dryer Thermistor


Normal would be about 10k ohms at room temperature, 74 degrees Fahrenheit.

And no I have never seen that control board relay smoke unless you put in a different part number thermistor than what your model takes.

Here's the control board for DV42H5200EP:
DC92-00669Y PCB


Jake
 

Jeffs_62

Premium Member
Joined
Jan 26, 2020
Messages
6
Location
Leavenworth, Washington
Thanks Jake.
Yes, the parts dryer was same make and model.

I will double check the thermistor I put in. There was a number on it, and I believe it was f32.
I really appreciate your response. I will update after the new board arrives.
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
113,050
Location
McMullen Valley, Arizona
Ok Jeff, sounds good.

Jake
 

Jeffs_62

Premium Member
Joined
Jan 26, 2020
Messages
6
Location
Leavenworth, Washington
Got the new board. Double checked the thermistor and it was factory stamped with numbers same as the old one. Replaced the control board and have done a full load running as it had before. I’m going to assume that an issue with the old board caused the fault in the thermistor, and replacing that forced the issue back to the board.

Thank you for your input, Jake.
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
113,050
Location
McMullen Valley, Arizona
Ok Jeff, sounds good. (y)

Thanks for the update!

Jake
 
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