GE Dishwasher Error Code F159

The F159 code means the machine control board has detected a blown fuse on the circuit that powers the circulation pump motor. Without this fuse intact, the control board cannot send power to the pump, and the dishwasher cannot spray water during a wash cycle. The fault is typically caused by a failing pump motor that drew too much current. Both the fuse and the pump motor need to be evaluated to properly resolve this error.

No, you should not continue running the dishwasher while the F159 fault is active. The circulation pump is not receiving power, which means water is not being sprayed during the wash cycle and dishes will not be cleaned. More importantly, if the underlying cause is a short circuit or a failing motor, continuing to operate the appliance could cause further damage to the control board or wiring.

Repair costs vary depending on which components need to be replaced. A circulation pump motor replacement typically ranges from $150 to $350 including parts and labor. If the machine control board also needs to be replaced, costs can range from $200 to $500 or more depending on the specific model and labor rates in your area. Getting a diagnosis from a qualified technician before purchasing parts is strongly recommended.

A knowledgeable DIYer can perform initial diagnostics, such as inspecting the wiring harness for visible damage and testing the circulation pump motor for continuity or resistance issues. However, replacing a blown fuse on the control board or swapping out the circulation pump motor requires comfort working with appliance electronics and wiring. If the control board itself needs replacement, professional repair is recommended to avoid damaging the unit.

Resetting the dishwasher may temporarily clear the error code from the display, but it will not resolve the underlying fault. The blown fuse on the control board is a physical component that has failed and cannot be restored by a reset. The fuse must be checked for continuity, and the root cause, whether the pump motor or wiring, must be addressed before the dishwasher will operate normally again.