The Samsung DW80B7070's own answer to a leak is the LC code: a leakage check. The manual's instruction is specific: if a water supply valve connection leaks, close the water supply valve, go to the house breaker panel and switch off the dishwasher's breaker, then contact the installer to fix it, and if the problem continues contact an authorized Samsung service center. Samsung routes every leak past the supply valve to that installer-or-service-center path rather than an owner repair inside the dishwasher. Other water on the floor is usually a supply hose fitting or, on this model, a door that opened with Auto Release Dry or a cover not properly closed.
Differential
Likely causes of “Samsung dishwasher is leaking water”, and how to tell them apart
- 1
A leak at the water supply valve connection
What separates it LC shows on the display and water appears at the front left or under the sink
How to confirm Close the supply valve, switch off the breaker and have the installer fix it
- 2
A loose or damaged supply hose or drain connection
What separates it Water drips at the base during fill or drain
How to confirm Check the supply and drain hoses and fittings once the water and power are off
- 3
The filter cover is loose
What separates it Water splashes from the tub and filtering is poor
How to confirm Make sure the filter cover is closed properly; a loose cover reduces filtering performance
- 4
The front seal was removed or damaged
What separates it Water seeps around the door because the front seal was removed or damaged
How to confirm Do not remove the front seal, the long rubber seal around the opening; replace it if damaged
Before you touch a setting
Record this first — changing settings destroys the evidence
- Whether LC shows on the display
- Where the water first appears, at the door, base or hose
- Whether the dishwasher was mid-fill or draining when it leaked
Try in this order
0 of 5 completedStop the water
ReversibleClose the water supply valve at once and mop up. Switch off the dishwasher's circuit breaker at the house panel.
Read the code
ReversibleLC means a leakage check. Samsung's instruction is to close the supply valve, turn off the breaker and contact the installer to fix a valve connection leak.
Check the connections
ReversibleWith power and water off, look at the supply hose and drain hose fittings and where the door seal meets the tub. Do not remove the front seal.
Check the filter and cover
ReversibleMake sure the filter cover is closed properly and the filter handle is turned clockwise to lock.
Call for service if it persists
ReversibleIf the problem continues after the connection is fixed, contact an authorized Samsung service center or call 1-800-SAMSUNG.
Model-specific
What is true of this model and not of its siblings
- Long-term and storage care
- If the dishwasher will not be used for an extended period, first drain it completely, disconnect the water hose, shut off the water supply valve and the circuit breaker, because water remaining in the hoses or internal components can damage it. The manual repeats this for storage.
- Parts for this problem on the DW80B7070 (RepairClinic, 2026-09-21)
- door vent fan gasket, part number DD63-00072A, at $10.70; water inlet valve, with garden hose water supply, part number DD33-01002B, at $172.73; drain hose, part number DD97-00403E, at $90.25; assy cover door switch, part number DD97-00256A, at $148.22.
- 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 LC persists after the installer fixes the connection, contact an authorized Samsung service center
- !If water is near electrics, keep the breaker off and do not run the dishwasher
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 does LC mean?+
A leakage check. Close the supply valve, turn off the breaker and contact the installer.
Who fixes a supply valve leak?+
Samsung says to contact the installer, and a service center if the problem continues.
Can I remove the front seal?+
No. The manual says not to; it keeps the inside sealed.
Can I hose the dishwasher down to clean it?+
No. It has electric parts inside; do not sprinkle water directly on it.
Is steam after a cycle a leak?+
No. The door automatically opens to let steam out after a cycle; that is normal.
What if the door will not close?+
In Auto Release Dry mode it cannot be closed for 2 minutes after opening.
Do I turn off the water?+
Yes, and the breaker, before any further checks.
Is a small puddle at the door a leak?+
Check the seal and the filter cover; if water keeps appearing, treat it as a leak.