Samsung Dishwasher Error Codes: Full List & Meanings
Updated · from manufacturer service documentation
Samsung dishwashers flag most faults through the Service Inspection self-test rather than mid-cycle codes — several two-letter labels you'll see are actually diagnostic-mode readouts, not spontaneous errors. The self-test itself runs as eight numbered steps that each isolate one part of the machine (water supply, spray nozzles, heater, drain, and so on), so the display code you see tells you exactly which step flagged a problem. Below is every code we've confirmed against Samsung's service documentation so far.
Samsung Dishwasher Error Codes
| Code | Meaning | Most common cause | Page |
|---|---|---|---|
| LC | Self-test: nozzle/circulation-motor spray check | Tub not fully filled before test / clogged nozzle | Samsung Dishwasher LC |
| SC | Difficulty draining water (same as 5C/5E/SE) | Disposal knockout not removed / kinked hose / dirty filter | Samsung Dishwasher SC |
Also seen on Samsung dishwashers: 4C, OC, 3C — pages will be linked here as they publish (sourcing gap so far).
Frequently Asked Questions
How do I enter Service Inspection Mode on a Samsung dishwasher?
Press and hold Heavy + Delicate + Power together for two seconds (DMT800/DMT610/ DMT350/DW80F800 series), or Heavy + Quick + Power on the DW80J3020 series. See the LC page for the full self-test walkthrough.
Are all Samsung dishwasher codes real errors?
No — some, like LC, only appear during the built-in self-test rather than during a normal wash cycle. Check the specific code's page before assuming a repair is needed.
What do the other Service Inspection Mode steps check?
The same eight-step self-test that produces LC (step No.2, circulation motor / spray check) also covers: Ft (No.1 — water supply, drain, and turbidity), Ld (No.3 — second circulation motor, same spray check as LC), Hd (No.4 — heater and thermistor), SH (No.5 — half-load function), SP (No.6 — storm-wash function), dF (No.7 — dry fan motor and dispenser), and L (No.8 — overflow sensor). Seeing one of these during the self-test points you straight to the part it tests, the same way LC points to the circulation motor.
Based on the Samsung service documentation for the DMT800 and DW80F600/DW80F800/DW80J3020 dishwasher series. Last updated: .