Kenmore Dishwasher Error Code 7-2

Error code 7-2 means the control board detected that the heater drive circuit is stuck in the on position, meaning it cannot shut off power to the heating element as commanded. The fault is diagnosed as a problem within the control board's heater drive circuit. The dishwasher stops the cycle to prevent overheating damage.

Start by unplugging the dishwasher or disconnecting power at the breaker. The primary repair is replacing the control board, since the 7-2 fault points to the heater drive circuit on that board. Before installing a new control, inspect the heating element and its wiring harness connections for signs of shorting, melted insulation, or burnt terminals. If the element or wiring is damaged, replace those components first, otherwise the fault can recur and damage the new control.

Yes, a shorted heating element can trigger or contribute to the 7-2 code by creating an unintended current path through the heater drive circuit on the control board. Before replacing only the control board, test the heating element for continuity and check for shorts to ground using a multimeter. If the element reads shorted, replace it along with the control board, since running a shorted element can damage the new board's relay as well.

No, you should not continue using the dishwasher while this code is active. A stuck-on heater condition means the heating element may be receiving uncontrolled power, which poses a risk of overheating the tub, damaging internal components, or in a worst case, creating a fire hazard. Keep the dishwasher unplugged until the control board and heater circuit have been inspected and repaired.

A replacement control board for a Kenmore dishwasher typically costs between $80 and $200 depending on the model, and the part is available from appliance parts suppliers using your model number. If you are doing the repair yourself, the board is usually accessible after removing the inner door panel, and the job takes most people 30 to 60 minutes. If a technician does the repair, expect to add $100 to $150 in labor. If the heating element also needs replacement, add another $20 to $60 for that part.