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Thread: Samsung Dryer: No Heat, no codes, can't find the problem

  1. #1

    Samsung Dryer: No Heat, no codes, can't find the problem

    Model Number: DV431
    Brand: Samsung
    Age: 6-10 years

    I have a 9 year old Samsung DV431 that has been problem-free up until a week ago when it failed to heat. I hopped onto Youtube and bought a $30 parts kit to replace the heating element, thermal fuse (at the blower), thermistor, and high-temp cutoff. As I replaced each part, I tested the original and verified continuity and proper resistance. Still, I decided to replace the parts with the new ones and confirmed identical continuity and resistance with the new parts. Unfortunately, there's still no heat and by checking my electrical panel it confirms that less than 500W is being used during the dryer cycle (to turn the motor and blower).

    I checked the NEMA 10-30R outlet to confirm voltage, checked the junction box at the dryer to confirm 240V, and checked the power relay (blue and black wire) at the control box. I got 120V on one and 0V on the other when the dryer was off, then got 120V from both when the dryer was on. I'm running out of ideas here and am thinking it's either the PCB or some faulty wiring. Before I buy more parts, I thought I should consult those with more knowledge than myself. I'm rather new to DIY and was surprised I got as far as I did without breaking anything.

    Thanks in advance

  2. #2
    12/4/21 Update:

    After speaking with Samsung customer service and various internet parts distributor, the DC92-00322M main control board is discontinued as is its compatible counterpart. I decided to send the control board in for repairs to an outfit in Georgia who after receiving my board told me they could not fix the board since it was covered in epoxy. They refunded me the money and sent my board back to me. Upon receipt, the board had a sticker on the epoxy that said "internal circuit failure." I found another outfit that charges twice as much as the first, but assured me they could fix the board. So now it appears my issue was in fact the main control board and I'm waiting to receive my fixed board from the second outfit.

    Given this trouble of parts being discontinued with no support from the manufacturer, I'm inclined to adopt the idea that this may be the very last Samsung product I ever purchase again. The idea of junking a whole dryer because of a single inexpensive part that is no longer made available seems incredibly wasteful to me.

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