Miele Dishwasher Error Code F13

• Dishwasher stops mid-cycle and displays F13 error code on the control panel
• Water inside the dishwasher feels lukewarm or cold instead of hot
• Dishes and glassware come out with spots, film, or insufficient cleaning results
• Error code appears during the heating phase of the wash cycle
• Dishwasher may drain prematurely when the heating element fails
• Control panel may flash the error intermittently before stopping completely

• Failed heating element (most common cause) - the resistance heater may be burned out or defective
• Malfunctioning temperature sensor that monitors water heating
• Broken or loose electrical connections to the heating element
• Mineral buildup or limescale on the heating element (common in areas with hard water typical in USA)
• Faulty main control board failing to power the heating element
• Water inlet valve issues preventing proper water flow to the heating chamber
• Tripped thermal cutoff switch due to overheating or electrical surge
• 120V power supply issues specific to North American electrical standards

• Check your home's circuit breaker panel - verify the breaker serving the dishwasher is in the ON position; if tripped, switch it OFF then back ON
• Inspect and clean the dishwasher filter located at the bottom of the tub by removing any food debris or buildup that could restrict water flow
• Verify the water supply shut-off valve (typically located under the sink or behind the dishwasher) is fully open by turning the handle counterclockwise
• Check both spray arms (upper and lower) for blocked holes by removing them and running water through each arm to ensure proper water distribution
• Ensure the dishwasher door closes completely and the latch engages fully with an audible click
• Perform a complete reset by turning off the circuit breaker for 60 seconds, then turning it back on to clear temporary error codes
• Run a short rinse cycle without dishes to observe if the error reappears during normal operation