GE Dishwasher Error Code F158

F158 indicates that the dishwasher's control board has detected an overvoltage condition in the incoming power supply. The control monitors supply voltage continuously and triggers this fault when voltage rises above the acceptable operating threshold. The dishwasher may stop running to protect its internal components. The first step is to measure the voltage at the supply circuit using a multimeter.

It is not recommended to continue operating the dishwasher while this fault is active. The F158 code signals a potentially damaging overvoltage condition, and running the appliance under those circumstances could damage the control board, motor, or other electronics. Address the power supply issue before resuming normal use.

Repair costs depend on the root cause. If the problem is an electrical issue in the home, such as a loose neutral or circuit wiring problem, an electrician's service call may run anywhere from $75 to $250 or more depending on the complexity. If the control board has failed and needs replacement, parts and labor combined typically range from $150 to $400. In some cases, no parts are needed at all if the fault was caused by a one-time voltage event.

If the cause is a transient voltage spike, resetting the dishwasher by cutting power at the breaker for a few minutes may clear the code. However, if the issue is related to wiring, a loose neutral, or consistently high utility voltage, those problems require electrical knowledge to safely diagnose and repair. A failing control board would require component replacement, which many experienced DIYers can handle.

A reset by cutting power at the circuit breaker for several minutes may clear the F158 fault if it was caused by a temporary voltage spike. However, if the underlying cause, such as consistently high supply voltage or a wiring defect, has not been corrected, the error is likely to return. Always verify that the supply voltage is within the correct range before assuming the issue is resolved.