Error code F12 indicates a water inlet or fill system malfunction on your Asko dishwasher. This error means the appliance is unable to properly detect or receive adequate water supply during the wash cycle.
• Dishwasher fails to fill with water or fills very slowly
• Wash cycle starts but stops prematurely
• Error code F12 displays on the control panel
• No water reaches the wash arms or spray jets
• Dishwasher may not start the cycle at all
• Audible clicking or buzzing sounds from the inlet valve area
• Dishes remain unwashed or only partially cleaned
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Possible Causes
• Water inlet valve is clogged, stuck, or malfunctioning
• Main water supply valve to the dishwasher is turned off or partially closed
• Inlet hose is kinked, pinched, or severely bent
• Water supply line filter screen is blocked by sediment or debris
• Faulty water level sensor or float switch
• Damaged inlet hose with cracks or holes
• Household water pressure is too low (below 20 PSI)
• Control board issue preventing proper valve activation
• Mineral buildup or hard water deposits in fill system
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Safety Checks You Can Do
• Verify the main water supply valve behind or under the dishwasher is fully open (turn counterclockwise)
• Check that the inlet hose is not kinked, twisted, or pinched along its entire length
• Inspect the inlet hose connection points at both the dishwasher and wall for visible damage or leaks
• Turn off water supply, disconnect the inlet hose, and clean the filter screen at the connection with a small brush
• Ensure the dishwasher door is closing completely and the latch is engaging properly
• Confirm you are using a recommended detergent type for your Asko model
• Run the dishwasher on a short cycle and listen for water fill sounds during the initial fill phase
• Unplug the dishwasher from the electrical outlet for 60 seconds, then plug it back in to reset the control panel
• Check household water pressure at another faucet to ensure adequate supply (should be 20-80 PSI)
• If error persists after these checks, contact on 844-731-2978
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NOTE!
If the error code persists, call to schedule your service
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