Error code F42 indicates a heating element malfunction or temperature sensor failure in your Asko dishwasher. This error prevents the dishwasher from reaching the required water temperature needed for proper cleaning cycles.
• Dishwasher cycles stop mid-operation and display F42 error code
• Water is not heating during wash cycles
• Dishes come out cold and inadequately cleaned
• Error code persists even after cycle restart
• Dishwasher may not complete drying phase
• Control panel may show F42 with audible beep alerts
• Some cycles may fail to initiate when error is present
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Possible Causes
• Faulty heating element unable to generate heat at 120V or 240V depending on model
• Malfunctioning temperature sensor providing incorrect readings to control board
• Broken or damaged thermostat preventing proper temperature regulation
• Control board electrical failure affecting heating circuit
• Wiring issues or loose connections in heating element circuit
• Thermal fuse blown due to electrical surge or power fluctuation
• Mineral buildup on heating element reducing efficiency (hard water areas common in USA)
• Failed relay or contactor in heating circuit
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Safety Checks You Can Do
• Check your home's circuit breaker panel and ensure the dishwasher's dedicated breaker switch is in the ON position; reset any tripped breakers by switching OFF then ON
• Verify the dishwasher door closes completely and latches properly—partially closed doors can trigger error codes
• Review your cycle settings to confirm a heated drying or wash cycle was selected
• Allow the dishwasher to cool for 30 minutes if it was recently running, as some models display errors when overheated
• Perform a full appliance reset by turning OFF the circuit breaker dedicated to the dishwasher for 60 seconds, then switching it back ON
• Check if error code clears after running a test cycle on the shortest available wash setting
• Ensure water supply valves under the sink are fully open and water pressure is adequate
• Inspect the exterior power cord connection for damage or loose connections at the wall outlet (do not attempt to repair)
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NOTE!
If the error code persists, call to schedule your service
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