Symptoms
• Dishwasher stops mid-cycle and displays E12 error code on the control panel
• No water or insufficient water fills the dishwasher tub at the start of wash
• Water inlet valve makes clicking or buzzing sounds but no water flows
• Error occurs intermittently or during specific wash cycles
• Dishes remain dry after cycle completion
• Low water level visible inside the dishwasher during operation
Possible Causes
• Kinked, pinched, or blocked inlet hose connection at the back of the unit or under the sink
• Inlet water valve (solenoid valve) failure or partial blockage from mineral deposits
• Clogged inlet screen filter due to sediment or mineral buildup common in hard water areas
• Water supply turned off at the main shutoff or isolation valve under the sink
• Home water pressure below 20 psi due to municipal supply issues or line restrictions
• Failed water inlet valve assembly requiring replacement
• Loose or disconnected hot water supply line connection (USA models use 120V inlet valve)
• Control board failure preventing the inlet valve from opening properly
Safety Checks You Can Do
• Check that the water supply shutoff valve under the sink is fully open (turn counterclockwise)
• Verify the main home water shutoff is on and that other faucets in your home have normal water pressure
• Inspect both the hot and cold water inlet hoses at the back of the dishwasher for kinks, bends, or pinches
• Disconnect the inlet hose at the back of the dishwasher and place the end in a bucket to test water flow from the supply line
• Listen for water pressure hissing or clicking from the inlet valve area when a wash cycle starts
• Check your home's electrical circuit breaker to ensure the dishwasher circuit is fully on (not tripped)
• Allow the dishwasher to sit unpowered for 5 minutes, then plug back in and restart the cycle
• Inspect the inlet hose screen filter (located where the hose connects to the dishwasher) for sediment or mineral deposits and rinse if accessible
• Run hot water at your kitchen sink for 20-30 seconds to ensure adequate hot water supply pressure to the dishwasher connection
• Check that the door latch closes fully and engages completely, as E12 can occasionally trigger if the door switch does not fully register
Safety First
Always disconnect the appliance from power before performing any checks. If you are unsure about any step, please contact a qualified technician.