Kenmore Dishwasher Error Code 1-1

Error code 1-1 means the dishwasher control board has detected that the K400 pilot relay is stuck in the closed position. This relay is responsible for switching power to specific loads within the dishwasher. When the control sees it stuck closed, it halts operation to prevent further damage to the machine or its wiring.

No, you should not continue using the dishwasher with error code 1-1 active. A relay stuck closed means a component or circuit is not being properly controlled, which can lead to components running continuously, overheating, or wiring damage. Stop using the dishwasher and disconnect power until the fault is diagnosed and repaired.

A reset will not permanently clear error code 1-1 if the underlying fault is still present. The code will return immediately or after the next cycle attempt because the control board will detect the K400 pilot relay condition again. The short circuit in the relay circuit or its connected loads must be physically found and repaired before the error will clear and stay clear.

Start by unplugging the dishwasher or shutting off its circuit breaker. With power disconnected, test all components connected to the K400 pilot relay for short circuits using a multimeter. Any shorted components must be replaced, and the control board must also be replaced as part of this repair. Because this requires identifying specific relay load circuits on the board and testing individual components, a technician familiar with dishwasher wiring diagrams can complete this more efficiently, but an experienced DIYer with a multimeter can work through it using the wiring diagram for the specific Kenmore model.

Repair cost depends on which components are shorted. A replacement control board for a Kenmore dishwasher typically runs between $100 and $250 for the part alone. If a pump, inlet valve, or other load component is also shorted and needs replacement, add another $20 to $100 per part. Professional labor adds $100 to $200 depending on your area. If multiple components are shorted, weigh the total repair cost against the age and value of the dishwasher before proceeding.