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Error Code Reference

KitchenAid Dishwasher Error Code F4-E3

This error code indicates a drainage system malfunction, meaning the dishwasher is unable to properly pump water out during the drain cycle. This is a common issue that may prevent your dishwasher from completing its wash cycle.

Technical Advisory
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Signs

What you may observe

• Water remains pooled at the bottom of the dishwasher after the cycle completes • Dishwasher stops mid-cycle and displays the F4-E3 error code • Unusual gurgling or drainage sounds coming from the dishwasher • Dishes remain wet or have dirty water residue after the cycle • Error code appears on the digital display panel • Dishwasher refuses to start a new cycle until error is cleared

Possible Causes

Root causes behind this error

• Kinked, bent, or twisted drain hose restricting water flow • Debris, food particles, or mineral buildup clogging the drain pump or filter • Drain hose disconnected from the sink drain or garbage disposal • Clogged garbage disposal (if dishwasher drains into one) • Faulty drain pump motor or pump impeller failure • Blocked or malfunctioning check valve in the drain system • Pinched drain hose under the dishwasher or behind cabinetry • Hard water mineral deposits affecting drain pump performance • Control board or wiring issue preventing proper drain signal

Safety Checks You Can Do

Steps you can try at home safely

• Turn off the circuit breaker to the dishwasher for 60 seconds, then turn it back on to reset the appliance • Ensure the dishwasher door is fully closed and the latch is secure • Verify the water supply valve under the sink is turned on completely • Inspect the drain hose for visible kinks, bends, or damage and straighten if necessary • Check where the drain hose connects to the sink drain or garbage disposal and ensure it's firmly connected • Remove and clean the dishwasher's filter basket (usually located at the bottom of the tub) of any visible food debris • If you have a garbage disposal, run it to clear any clogs that might block the dishwasher drainage • Check that you're using the correct dishwasher detergent and proper amount for your water hardness • Review your dishwasher's control panel settings and cycle selection to ensure proper settings are selected • Look under the sink to ensure the drain hose isn't pinched between the cabinet wall and pipes • Run a cleaning cycle with dishwasher cleaning solution to help clear mineral buildup from internal components
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