What this code means
Heater pressure switch has reset during heating. The program continues from the wash block in which the fault is registered without the heating being activated.. Possible causes: Excess quantity of detergent or rinse aid dispensed; Excess foam has developed; Heater relay defective; contact open; Heater relay solenoid defective; Connection from heater relay to electronic open-circuited; Heater pressure switch open- or short-circuited; Connection from heater pressure switch to electronic open-circuited; Foreign objects in heater pressure switch; Electronic defective
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
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