Error Code E5

Water supply pump AD value below 10 in test mode — pump failure or wiring fault.

Also displayed as: E5

What This Means

DC water supply pump failed or disconnected; Harness wire to pump connector loose or disconnected

How to Fix

1. 1

   Activate diagnostic test mode and press START/PAUSE four times.

2. 2

   Wait for each test step to complete before advancing — rapid pressing can damage main board.

3. 3

   Read the AD value on the display.

4. 4

   If AD value is 10 or above: pump is normal.

5. 5

   If AD value is below 10 (E5 displayed): check harness connection between wiring harness and DC pump connector — reseat connectors.

6. 6

   If connector is secure and E5 persists: replace the DC water supply pump assembly.