Whirlpool Dishwasher Error Code 1-1

Error code 1-1 means the control board has detected that the K2 pilot relay is stuck closed, meaning the relay is passing current when it should be off. The control board monitors its own relay outputs and flags this code when it detects a mismatch. The fault can originate in the relay itself or in a shorted component connected to it.

Start by unplugging the dishwasher or shutting off the circuit breaker. Then check all electrical loads connected to the K2 pilot relay for short circuits using a multimeter. If a shorted component is found, replace it. If no short is found in the loads or wiring, replace the control board. Always replace all shorted components alongside the control board, or the new board may fail immediately.

A shorted load connected to the K2 pilot relay can directly cause error code 1-1 and is actually the first thing to check before replacing the control board. If you replace the control board without finding and fixing the short, the new board will likely fail in the same way. Use a multimeter to check resistance across each component powered by the K2 relay before ordering parts.

No, you should not continue using the dishwasher while error code 1-1 is active. A relay stuck closed means one or more components may be receiving unintended power, which creates a risk of overheating or further electrical damage. Keep the dishwasher unplugged until the fault is diagnosed and repaired.

A replacement Whirlpool dishwasher control board typically costs between $100 and $250 for the part alone, depending on the model. If a technician performs the repair, expect an additional $100 to $200 in labor. If the fault is caused by a shorted downstream component such as a pump or valve, that part will add to the total cost. A DIY repair is feasible if you are comfortable working with appliance wiring and a multimeter.