Samsung dishwasher not draining is a known issue affecting DW80R series. Our technicians specialize in Samsung-specific diagnostics and repair.
Samsung dishwasher not draining is typically caused by clogged drain hose or failed drain pump. Samsung-specific factor: check valve failure allowing sink drain water to backflow into tub. Repair costs $100-$250 with free diagnostic and 90-day warranty.
Check valve failure allowing sink drain water to backflow into tub
Drain pump motor burnout from running against clogged disposal
Fine mesh filter basket clog from food debris accumulation
Drain solenoid not engaging due to control board signal failure
Air gap or high-loop installation defect causing siphon drain-back
Other Samsung models may also be affected. Book a free diagnostic for confirmation.
Seeing one of these codes? It likely indicates not draining.
Bay Area Samsung dishwasher drain problems frequently trace to older plumbing in pre-1960 homes — shared drain lines with garbage disposals that lack an air gap create chronic backflow. San Francisco building code requires air gaps but many older kitchens were grandfathered in, and Samsung units are particularly sensitive to backflow contamination.
Remove lower spray arm and fine mesh filter basket — inspect for food debris blocking the drain sump inlet
Run Samsung dishwasher diagnostic: close door, press Normal + Express 3 times in 10 seconds, watch for drain cycle activation
Check drain hose connection at disposal or sink drain — must be connected to air gap or have proper high loop above drain line
Test drain pump motor for continuity — Samsung DD31-00016A should read 15-25 ohms across motor terminals
The technician removes the filter assembly and sump cover to access the drain pump. If the check valve is fouled, cleaning or replacing it restores proper drainage in most cases — a 30-minute fix. Full pump replacement requires disconnecting the water supply, removing the lower panel, and swapping the motor assembly. The technician also verifies the drain hose routing meets code requirements.
| Diagnostic | Free |
| Typical repair | $100–$250 |
| Repair time | 1-1.5 hours |
| Warranty | 90 days parts + labor |
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Dishwasher Repair
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Washing Machine Repair
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