Problems you may notice
• Washer fails to fill with water during the wash cycle
• Cycle stops abruptly and displays error code 40
• Drum remains dry or partially filled
• Water inlet valves may not be opening or closing properly
• Audible clicking or buzzing sounds from the inlet valve area
• Washer displays error message but does not complete the cycle
Possible Causes
• One or both inlet water supply valves (hot and cold) are closed or partially closed
• Inlet hoses are kinked, pinched, or bent at connection points
• Inlet hose screens or filters are clogged with mineral deposits or debris
• Water pressure in your home is too low (below 20 PSI minimum for USA standard plumbing)
• Inlet valve solenoid has malfunctioned and is not opening
• Faulty water level sensor providing incorrect readings
• Clogged inlet ports on the back of the washer
• Defective fill valve assembly
• Frozen inlet lines (in cold climates)
• Electrical connection issue preventing valve actuation
Precautionary measures
• Verify both hot and cold water supply valves behind the washer are fully open by turning them counterclockwise
• Check that the inlet hoses are not kinked, twisted, or pinched where they connect to the wall and washer
• Inspect the inlet hoses for visible damage, cracks, or bulges along their entire length
• Ensure the washer is not positioned too close to the wall, restricting hose movement
• Verify your home's water supply is running normally by checking other faucets in the house
• Remove and inspect the inlet hose screens (small filters at the valve connection points) for debris or mineral buildup; rinse if necessary
• Confirm the washer door or lid is fully closed and latched before starting a cycle
• Check that your home's circuit breaker for the washer is in the ON position
• Ensure proper detergent usage and that you are not overloading the washer drum
• Perform a hard reset by switching off the circuit breaker for 60 seconds, then switch it back ON
• Run a test cycle with no laundry to see if the error persists
• If error code 40 continues to display after these checks, contact a professional appliance repair technician or appliance repair support service to diagnose and repair the inlet valve system
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