What this code means
Heater pressure switch fault - heater pressure switch contacts did not close after heater relay activation. Possible causes: Heater relay defective or contacts open; Heater relay solenoid defective; Open-circuited connection from heater relay to electronic module; Heater pressure switch open or short-circuited; Open-circuited connection from heater pressure switch to electronic module; Foreign objects in heater pressure switch
Next steps: diagnose the root cause
Power cycle the unit and see if the code returns. If it does, the fault is persistent and requires diagnosis.
Get step-by-step guidance, test values, and wiring diagrams from the OEM service manual.
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What’s available for Miele dishwasher models
Access Miele dishwasher service manuals, wiring schematics, exploded parts views, and error code references on MyPros+.