KitchenAid Dishwasher Error Code F7E2 — Heating Element Won't Shut Off
What this means
Error code F7E2 indicates the heating element continues to receive power even after the control board has commanded it to turn off. This is typically caused by a stuck relay on the main control board that keeps the heating circuit energized. This is a safety-critical error because an uncontrolled heating element can overheat water and potentially damage the dishwasher tub.
Alternate codes: F7 E2, 7-2
Step-by-step fix
4 stepsDisconnect power immediately
Turn off the circuit breaker supplying the dishwasher immediately. This is a safety-critical error — the heating element may continue running uncontrolled.
Do not run the dishwasher until this error is resolved to prevent overheating.
Wait and power cycle
Leave the power off for at least 5 minutes to allow the relay to cool and potentially unstick. Restore power and check if the error clears.
A stuck relay can sometimes free itself when the unit cools down, but this is usually a temporary fix.
Access the control board
If the error persists, remove the dishwasher's inner door panel to access the main control board. Inspect the board for signs of burnt components or damaged relay contacts.
Look for discoloration, melted plastic, or a burnt smell near the relay components on the board.
Replace the control board
A stuck heating relay requires replacing the main electronic control board. Disconnect all wire harnesses, noting their positions, and install the new board.
Take photos of all wire connections before disconnecting to ensure correct reassembly.
When to call a professional
This is a safety-critical error. If you are not comfortable working with electrical components, contact a professional immediately. Do not continue using the dishwasher until it is repaired.
Related error codes
Information compiled from manufacturer service manuals, official troubleshooting documentation, and appliance repair industry resources. This guide is for informational purposes only — always consult a qualified technician for complex repairs.
Learn more about our sourcesParts you may need
Main Control Board
Part #W10854231 · $120–$200
Required — stuck relay on the control board must be replaced
Links may earn us a commission at no extra cost to you. We only recommend parts relevant to this repair.