Miele Washing Machine Error Code F100

• Washing machine fails to fill with water during the wash cycle
• Cycle stops prematurely with F100 error displayed on control panel
• Water trickles slowly into the drum instead of filling normally
• Error code F100 appears even though water supply lines are connected
• Machine makes unusual sounds during the fill phase
• Wash cycle cannot start and displays error message
• Water backs up or leaks from the inlet area

• Clogged water inlet filters (common in areas with sediment in municipal water supplies)
• Faulty inlet water valve not opening properly
• Kinked or pinched inlet hoses reducing water flow
• Water supply valves behind the washing machine turned off or partially closed
• Low water pressure from main supply line (below 14.5 PSI minimum for USA models)
• Mineral buildup or debris blocking water entry ports
• Defective water level sensor or pressure switch
• Electrical connection issue to inlet valve solenoid
• Failed inlet valve requiring replacement
• Control board malfunction preventing valve activation

• Check that both hot and cold water supply valves behind the washing machine are fully turned on (turn counterclockwise)
• Verify your home's circuit breaker for the washer is in the ON position; if tripped, reset it and restart the machine
• Inspect both inlet hoses for kinks, crimps, or twists that could restrict water flow
• Disconnect inlet hoses at both the machine and wall connections, then flush each line into a bucket to check for debris or sediment
• Remove and rinse the inlet filters located where hoses connect to the machine (turn off water supply first)
• Ensure you are not overloading the washing machine drum, as this can trigger sensor errors
• Verify the door is fully closed and latched securely before starting a cycle
• Perform a complete reset by switching off the circuit breaker for 60 seconds, then switch it back on and attempt a new wash cycle
• Check that your home's water pressure is adequate by testing another faucet for normal flow
• Run a test cycle with no clothes to isolate whether the issue occurs consistently