FIXED DV42H5000EW/A Samsung Dryer with main board issues

thomaszr

Premium Member
Joined
Jul 19, 2012
Messages
31
Location
Hawaii
Model
DV42H5000EW/A
Brand
Samsung
Age
1-5 years
I recently acquired a fairly new Samsung DV42H5000EW/A3 electric dryer.

The original owner said the main board blew a month before the warranty expired.

The repairman replaced the main board and a week or 2 later it blew again.

He got pissed at it, called Samsung, and I guess they gave him a refund and he bought a new non Samsung dryer.

I'm getting ready to take a crack at it and am not sure where to begin and have a few questions.

I did some research and read something some where about checking thermal fuses before replacing the main board.

Is there a parts list for this thing on-line somewhere that could show me how many it has and where they are located?

I would appreciate any advice.
Thank you in advance.

Tom
 

jeff1

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Hi,

Is there a parts list for this thing on-line somewhere that could show me how many it has and where they are located?
Normally 2.

#2-5 50044346-00005.jpg

Thermal-Fuse-DC47-00016A-01720773.jpg Dryer thermal fuse

#4 50044346-00006.jpg

Thermal-Fuse-DC96-00887A-01647062.jpg Thermal fuse with bracket

[video=youtube;3nicyh6EUHc]https://www.youtube.com/watch?v=3nicyh6EUHc&feature=player_embedded[/video]

The repairman replaced the main board and a week or 2 later it blew again
Check heating element, check wiring for sure.

jeff.
 

thomaszr

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Messages
31
Location
Hawaii
Thanks for the reply but I'm kinda confused.

Are there 2 or 4 fuses?

Do you think it could be the heating element instead of the fuses?

Please let me know.

I'm kinda new at this.

Thanks in advance.
 

jeff1

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thomaszr

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Location
Hawaii
The Thermal Fuse, Thermistor, Thermostat, Thermal Cut out & Heating element all have good continuity. I also checked all the wires for breaks or loose connection contact shorts.

I also noticed that the original board part number DC92-01606C has been discontinued and substituted with DC92-01596D.

I wonder if the resistance is not high enough on the new board.
 

jeff1

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I wonder if the resistance is not high enough on the new board.
Shouldn't "blow" a board...might get an error code or heating off a little.

jeff.
 

thomaszr

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Jul 19, 2012
Messages
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Location
Hawaii
New board is in and still no heat.

I'm sure I felt heat coming out of the back before I slid the dryer back in place. :-(

to summarize:

Unit runs fine with either main board; just no heat!

Thermal Fuse, Thermistor, Thermostat, Thermal Cut out & Heating element all have good continuity.

I also checked the element & wires for breaks, loose connections and contact shorts.

Any suggestions?

HELP!?
 

jeff1

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Confirm power to the unit ( 220-240 volts AC ) and motor heat switch is something else that must close/work for the heat to come on.

jeff.
 

thomaszr

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Messages
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Location
Hawaii
I have 110 power on both sides of the 220 plug. The motor heat switch closes/opens when the I move the wheel on the motor shaft back and forth. (I cleaned the contacts inside just to be safe)

When I ran it after putting it back together It ran for a few seconds then shut off and gave me a tE code Te code.png

I have never gotten this code before this last time I took it apart. It always ran but did not heat.

I cleaned the lint trap and pulled the vent hose from the back and still get the code.

Would it mater if I put one of the plugs on Thermal Fuse, Thermistor, Thermostat, Thermal Cut out & Heating element backwards cause this?

I would appreciate any advice.
 

jeff1

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I have 110 power on both sides of the 220 plug
What did you measure accross the 2 lines?

Would it mater if I put one of the plugs on Thermal Fuse, Thermistor, Thermostat, Thermal Cut out & Heating element backwards
Nope, they are not polarity sensitive.

tE is an thermistor sensor issue of some sort...or the wiring to it or the board if the thermistor is ok.

Thermistor-DC32-00007A-01308012.jpg Dryer thermistor

I believe it is approx 10000 ohms at room temp.

jeff.
 

thomaszr

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Messages
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Location
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each leg reads 120 & combined reads 210v

What would cause that?
 
Last edited:

thomaszr

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Messages
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Location
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Changed the Thermistor and now it heats again.

Hopefully problem solved...

Maybe I should have an exorcism performed on it
 

jeff1

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Changed the Thermistor and now it heats again
Great, throw that one out so it doesn't get mixed up with parts that might be good.

jeff.
 
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