All fault codes

Samsung EHS E912 fault code

Samsung EHS heat pumps

What it means

Normal flow detected while the pump is OFF

The flow sensor reports normal flow for 10 minutes while the pump signal is OFF (above 7 L/min on this range). Flow without a pump command means something else is pushing water, or the sensor is lying.

UK models this code applies to

From the Samsung service literature we hold (Samsung MWR-WW10N user & service manual DB68-08470A-17 (Appendix: error codes)) — not a scraped list.

EHS Mono R290 5 kW (AE050CXYD)EHS Mono R290 8 kW (AE080CXYD)EHS Mono R290 12 kW (AE120CXYD)EHS Mono R290 16 kW (AE160CXYD)

Now the harder half: proving what caused it

E912 names a symptom, not a root cause. In the app, the same code opens a guided investigation: what to measure first, the expected values for your exact model, and an honest verdict — including “nothing in this machine is broken” when that's what the readings say.

Chase this code in the app →

Other Samsung EHS codes