Unusual Samsung Dishwasher Drain Issue — What I Found
I wanted to share a case I recently encountered because it was unusual and interesting.
A Samsung dishwasher (model DW80R2031US) was not draining at the end of the cycle, even though it drained perfectly at the beginning, during the cycle, and when a cycle was canceled. The initial complaint from the homeowner was that there was water left at the bottom after a cycle finished.
A few additional details made this case even more curious: the dishwasher was only a year old and had recently been moved from one house to another by a renovation company.
Initial Troubleshooting
My first thoughts were typical dishwasher troubleshooting suspects:
- Leaky water valve
- Partial clog in the drain system
- Improper installation
I ran the dishwasher through test mode — no error codes appeared, and it drained perfectly during the test. I also disconnected the rubber water hose from the water valve to check for leaks — nothing. All the sensors were tested, including the turbidity sensor, water level switch, temperature sensor, and overflow switch — all checked out fine.
At this point, I suspected a problem with the main control board (PCB). I replaced it and ran a quick cycle, expecting the issue to be resolved… but after 60 minutes of watching a Joe Rogan podcast, the dishwasher still did not drain at the end of the cycle. Frustrating!
The Real Problem
While inspecting, I noticed the dishwasher was not hardwired as intended. Instead, it had a regular three-wire electric cord plugged into a wall receptacle. As a last resort, I opened the dishwasher’s electrical box to check the wiring.
Immediately, the problem became obvious: the white wire was connected to black, and the black wire was connected to white. Whoever had installed it clearly did not wire it correctly — or simply didn’t care. I rewired it properly, ran a test cycle, and it worked perfectly.
Key Takeaway
If your Samsung dishwasher (especially model DW80R2031US) drains at the beginning but not at the end of a cycle, don’t forget to check the power cord wiring. Proper electrical connections are just as important as the drain system or control board.
Happy fixing, and good luck with your appliance repair!
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