Skip to main contentStart diagnosing HC on your Samsung water heater
What this code means
High temperature heating check - heating element or temperature control malfunction. Possible causes: Heating element malfunction; Temperature sensor malfunction; Electronic control board malfunction
Next steps: diagnose the root cause
1
Verify the error code is active
Power cycle the unit and see if the code returns. If it does, the fault is persistent and requires diagnosis.
2
Get the full diagnostic procedure
Get step-by-step guidance, test values, and wiring diagrams from the OEM service manual.
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What’s available for Samsung water heater models
Access Samsung water heater service manuals, wiring schematics, exploded parts views, and error code references on MyPros+.