Maytag Dishwasher Error F2: User Interface Connection Failure

The Logic Verdict

My Take: I reviewed the repair process. The F2 error (often displayed as F2E2) means the brain of the dishwasher (Main Control Board) can’t talk to the buttons (User Interface). Before buying expensive boards, you should open the door panel and simply unplug and reconnect the wire harness between them—loose connections are a common cause.

What It Means

The F2 code (specifically F2E2) stands for User Interface Communication Error.

Common Causes

1. Loose Connections: The ribbon cable or wire harness between the UI and Control Board has vibrated loose.
2. Corrosion: Moisture has damaged the contacts on the User Interface board.
3. Faulty User Interface: The button panel itself has failed.
4. Faulty Control Board: The main board is not sending/receiving signals correctly.

Step-by-Step Fix

1. Safety First: Unplug the dishwasher or turn off the circuit breaker.
2. Separate the Door: Open the dishwasher door. Remove the Torx screws (usually T15 or T20) along the inner edge of the door liner. Tip: Support the outer door panel so it doesn’t drop.
3. Access the Components: Carefully separate the outer door panel from the inner door. You will see the Main Control Board (a plastic box) and the back of the User Interface (where the buttons are).
4. Check the Wiring: Locate the wire harness or ribbon cable connecting the User Interface to the Main Control Board. Unplug it at both ends (if possible) and inspect for green corrosion or broken wires.
5. Clean and Re-seat: If the contacts look dirty, clean them with a little electronics cleaner or isopropyl alcohol. Firmly plug the harness back in.
6. Replace the UI: If the wiring is good but the error persists, the User Interface board is the most likely failure. Remove the screws holding it to the console and replace it.
7. Reassemble: Put the door back together, restore power, and test.

Parts & Tools

• Maytag Dishwasher User Interface Board (Amazon Search)
• Amazon Product (Amazon)

Resources