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Old 11-23-2020, 04:20 PM   #1
ajshoe
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Default samsung washer control board - DC92-01021H

Have a Samsung washer - top load that only starts when it wants to. Normally pushing the start button after selecting the cycle - it won't start, just beeps. constantly adjusting cycle and hitting start may get it to work. I took out the control board (wax or gum coated) - don't see anything obviously wrong. Put in another used control board - washer works perfectly (start button works).
Is there a way to remove this wax / gum off the board ( DC92-01021H) ? I'll post pics tomorrow morning.

Most likely bad caps ? I read on another post - bad voltage regulator. thanks

Last edited by SMDFlea; 11-24-2020 at 03:22 PM..
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Old 11-23-2020, 04:30 PM   #2
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Default Re: samsung washer control board

heat that epoxy up with hot air then pick it off.
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Old 11-23-2020, 05:23 PM   #3
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Default Re: samsung washer control board

Did back side. Not easy job.irs not epoxy - very soft. Gummy. It is clean thou. Work on top side tomorrow

Last edited by ajshoe; 11-23-2020 at 05:25 PM..
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Old 11-23-2020, 05:46 PM   #4
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Default Re: samsung washer control board

cycle selector might need cleaning
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Old 11-23-2020, 05:52 PM   #5
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Default Re: samsung washer control board

appears that all functions work -rotating the knob selects any cycle. the only fault is the start button doesn't start the cycle that was selected. The start button is acknowledge as I hear a beep when pressed. I can get the washer to start but is totally randomly. can't figure out sequence to get it to run consistently.
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Old 11-23-2020, 06:00 PM   #6
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Default Re: samsung washer control board

lid switch ok ?
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Old 11-23-2020, 06:07 PM   #7
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Default Re: samsung washer control board

think you missed the earlier post - I put in a used control board from ebay and washer works perfectly
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Old 11-23-2020, 06:11 PM   #8
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Default Re: samsung washer control board

Quote:
Originally Posted by ajshoe View Post
think you missed the earlier post - I put in a used control board from ebay and washer works perfectly
yes i missed that bit .
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Old 11-24-2020, 10:17 AM   #9
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Default Re: samsung washer control board

pics - found bad cap 10Uf 500V. replaced it - washer seems to work now. ran 3 loads with no issues.
Attached Images
File Type: jpg samsung_cntrl_bd1.jpg (487.1 KB, 19 views)
File Type: jpg samsung_cntrl_bd2.jpg (464.2 KB, 14 views)
File Type: jpg samsung_cntrl_bd3.jpg (415.9 KB, 14 views)
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Old 11-24-2020, 02:14 PM   #10
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Default Re: samsung washer control board

Quote:
Originally Posted by ajshoe View Post
pics - found bad cap 10Uf 500V. replaced it - washer seems to work now. ran 3 loads with no issues.
Good job! where is the cap located? This will help lots of people. The conformal coating is always a pain to remove, yous is more likely to be silicone based conformal coating. Washer model number?
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Last edited by budm; 11-24-2020 at 02:19 PM..
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Old 11-24-2020, 05:29 PM   #11
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Default Re: samsung washer control board - DC92-01021H

in the pic - it is the cap with the black x on top of it - top of the board (actually easy to remove and install new one). thought I put model # in topic - my mistake. Samsung washer model #WA50F9A8DSW/A2. Is there an easy way to remove that silicon coating ? I spent a lot of time peeling it off.

Last edited by ajshoe; 11-24-2020 at 05:35 PM..
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Old 11-24-2020, 06:08 PM   #12
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Default Re: samsung washer control board - DC92-01021H

aah! Top left, first pic! Nice job!
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