Problems you may notice
• Dishwasher fails to fill with water during wash cycles
• Error code A3 displays on the control panel
• Dishwasher starts but stops prematurely without completing the cycle
• No water spraying from spray arms during operation
• Cycle halts and dishwasher drains water unexpectedly
• Reduced water pressure or no water flow when cycle begins
Possible Causes
• Water supply valve behind dishwasher is closed or partially closed
• Inlet hose is kinked, pinched, or bent restricting water flow
• Inlet hose has ice crystals or mineral deposits blocking water passage
• Water inlet valve is defective or stuck in closed position
• Mesh filter screen at inlet hose connection is clogged with sediment
• Low water pressure from home's main water supply line
• Improper installation of inlet hose causing connection issues
• Electrical issue preventing inlet valve solenoid from opening
• Faulty water level sensor giving false reading to control board
Precautionary measures
• Verify the water supply valve behind the dishwasher is fully open by turning the valve handle counterclockwise until it stops
• Inspect the inlet hose from the wall connection to the dishwasher for any visible kinks, bends, or pinches and straighten as needed
• Check that the dishwasher door is completely closed and the latch engages fully with an audible click
• Confirm your home's water supply is working by testing other faucets in the kitchen and bathroom
• Turn off power to the dishwasher at the circuit breaker, wait 60 seconds, then turn the breaker back on to reset the appliance
• Disconnect the inlet hose from the dishwasher connection point and remove the mesh filter screen to rinse away any sediment or mineral buildup
• Ensure you are using the correct amount of dishwasher detergent compatible with your model
• Check your home's main circuit breaker panel to confirm the dishwasher circuit breaker has not tripped into the off position
• Run a test cycle after performing each troubleshooting step to determine if the error resolves
• If error code A3 persists after completing all safe checks, contact a professional appliance repair technician who can diagnose water inlet valve function and internal sensor operation
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