How to Fix Samsung Dishwasher Error UC

⚠️ Safety Warning: Appliance repair involves electricity, gas, and moving parts. Always disconnect power before working on any appliance.

Error Code: Dishwasher Difficulty: Hard

Problem: Communication fault; data transmission error between control boards or sensors

⚖️ Repair Decision
⚠️ CHECK WARRANTY / AGE

$100 – $250 Range

How to Fix Dishwasher Error

  1. Unplug dishwasher for 15 minutes to reset all electronic components.
  2. Remove top panel, control console, and lower access panel to expose all internal harnesses.
  3. Reseat every wiring harness connector between main board, display board, motor, and sensors.
  4. Clean all connector pins with electrical contact cleaner. Allow 5 minutes drying time.
  5. Inspect entire harness routing for pinched wires, rodent damage, or abrasion near metal edges.
  6. Verify all ground connections are tight and corrosion-free at chassis mounting points.
  7. If error persists after reseating: replace main control board using OEM part DD92-00001A.
  8. Transfer all connectors to new board one-by-one. Secure mounting screws to 4 in-lbs torque.
  9. Restore power. Enter diagnostic mode (Temp+Delay Start+Power) to verify communication with all subsystems.
  10. Run full system diagnostic test sequence to confirm error clearance and proper operation of all components.

Recommended Replacement Part

OEM Part #: DD92-00001A

Estimated Market Price: $148

Check Price & Availability →

Still Not Working?

If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.

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Most DIY parts are $50–$250. If you have a quote, use the total.
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Expert: Mike Sullivan

EPA Section 608 Certified Technician with 18+ years experience.

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