Hotpoint Washer Error Code F18

F18 indicates a communication error between the 3-phase motor control board and the power module. These two components must exchange data continuously to operate the motor correctly. When that communication breaks down, the washer stops the cycle and displays F18. The power module is the most common cause of this fault.

No, you should not continue using the washer while F18 is active. The error indicates the motor control system is not communicating properly, which means the machine cannot reliably manage motor operation. Running the washer in this state could cause further damage to electronic components.

A reset, such as unplugging the washer for a few minutes and restarting, may temporarily clear the error display. However, if the underlying hardware fault such as a failed power module or damaged wiring is still present, the F18 code will return when the machine attempts to operate. A reset alone is not a repair.

Some causes, such as a loose wiring harness connector, can be addressed by a confident DIYer after unplugging the machine and carefully inspecting the connections. However, replacing the power module or motor control board involves working with internal electronics and requires comfort with appliance disassembly. If you are unsure, a qualified technician is the safer option.

Repair costs vary depending on the faulty component and whether you hire a technician. A power module replacement typically falls in the range of $150 to $350 including parts and labor. If the motor control board also needs replacement, costs can be higher. Getting a diagnostic estimate before committing to repairs is recommended.