For water that won't pump out of the Samsung DW80B7070, Samsung's table has one cause and one fix: the drain is clogged, so clean the drain pump by removing the drain-pump cover. The manual's own steps: remove the lower rack, remove the cylindrical micro filter, sponge away any moisture, push the drain-pump cover's handle in the arrow direction and lift it off, check the impeller is in good condition, clear foreign matter from the pump, and press the cover down until it clicks. The 5C drain check code means the same: after closing the water supply valve, check whether the drain hose is clogged or folded and whether the drain hole in the sump is clogged.
Differential
Likely causes of “Samsung dishwasher will not drain or leaves water in the tub”, and how to tell them apart
- 1
Foreign matter in the drain pump
What separates it Water stays in the tub and 5C may show
How to confirm Clean the drain pump by removing the drain-pump cover and clearing the pump
- 2
A clogged or folded drain hose
What separates it Water backs up or drains slowly because of a clogged or folded drain hose
How to confirm Straighten the hose and check it is not clogged; a technician may need to clear the drain hose
- 3
A clogged drain hole in the sump
What separates it 5C shows on the display and there is standing water because a drain hole in the sump is clogged
How to confirm After closing the water supply valve check the drain hole inside the sump
- 4
A clogged filter
What separates it There is slow draining and gritty dishes because of a clogged filter
How to confirm Clean the micro filter and the filter cover, and run a drain
Before you touch a setting
Record this first — changing settings destroys the evidence
- Whether 5C shows on the display
- How much water remains and whether it is dirty
- Whether the drain hose is folded behind the unit
Try in this order
0 of 5 completedRead the code
Reversible5C is the drain check. After closing the water supply valve, check whether the drain hose is clogged or folded, and whether the drain hole inside the sump is clogged.
Clean the filter
ReversibleRemove the lower rack, turn the filter handle counterclockwise, take out the cover and the cylindrical micro filter, remove dirt and rinse under running water, then refit and lock.
Clean the drain pump
ReversibleSponge moisture from the filter area, push the drain-pump cover handle in the arrow direction and pull up, check the impeller and remove foreign matter, then press the cover down until it clicks.
Check the drain hose
ReversibleCheck that the drain hose is not folded or clogged. Samsung says a bad odor from an obstructed hose needs a technician.
Restart
ReversibleClose the door, press START and let the cycle drain. If the water remains, contact Samsung service.
Model-specific
What is true of this model and not of its siblings
- Cancel and drain
- To cancel a running cycle and drain the dishwasher, press and hold START for three seconds. Once the dishwasher is reset, select a cycle and option and press START to restart. To change a cycle after it has started, press and hold START for 3 seconds to cancel the cycle, then select a new cycle.
- Parts for this problem on the DW80B7070 (RepairClinic, 2026-09-21)
- drain pump, part number DD31-00016A, at $155.28; filter micro, part number DD63-00304A, at $103.62; drain hose, part number DD97-00403E, at $90.25.
- Other models this page answers
- These steps also fit models DW80B6060, DW80R9950, DW80R7060, DW80M9550, DW80N3030, DW50T6060.
Stop boundary
When this stops being a self-service repair
- !If 5C returns after the pump, filter and hose are cleared, contact an authorized Samsung service center
- !If a drain hose obstruction is suspected, contact a qualified service technician
Evidence ledger
Sources behind this answer
Samsung's own support page listing this model's manuals.
Samsung's own short user manual for these dishwashers to confirm the control-panel and code names.
Parts and list prices as shown on RepairClinic's parts search for this model number on 2026-09-21.
Exact questions
Common questions
What if the drain hose is blocked?+
Contact a qualified service technician to remove the obstruction.
Can water be left in from an earlier cycle?+
Yes; run Heavy with the dishwasher empty and no detergent to clean it.
Do I close the water valve first?+
Yes, close the water valve first, for the 5C check.
Can a folded hose cause 5C?+
Yes. Check the drain hose is not folded.
Is the impeller important?+
Check that it is in good condition when the cover is off.