Hotpoint Washer Error Code F04

F04 means the pressure switch is stuck in the empty position, so the machine cannot detect the water level rising inside the drum. As a result, the washer keeps filling with water until the overfill safety system intervenes and stops the cycle. The fault points to a blocked pressure tube, a loose connection at the control module connector J3, a faulty pressure switch connector, or a failed pressure switch.

No, you should not run the washer with an active F04 error. Because the machine cannot properly detect the water level, it will continue filling beyond the normal point and could overflow, causing water damage to your home or the appliance. Stop using the machine until the fault is diagnosed and resolved.

A reset may temporarily clear the displayed error code, but the underlying fault will cause it to return as soon as the machine attempts to fill again. The pressure switch, its connections, and the pressure tube all need to be physically inspected and corrected before the code will stay cleared. Resetting without addressing the root cause risks repeated overfilling events.

Some causes of F04 are DIY-friendly, particularly clearing a blocked pressure tube or reseating loose wiring connectors at the pressure switch or at the J3 edge connector on the control module. These steps require no special tools and can resolve the fault without replacing any parts. If the pressure switch itself has failed, replacing it is a moderate-difficulty repair that many experienced DIYers can handle, though a technician should test the component first to confirm the diagnosis.

If the fix is simply clearing a blocked pressure tube or reseating a connector, there may be no parts cost at all, only your time. A replacement pressure switch typically costs in the range of $15 to $50 depending on the model, plus labor if a technician is called. If the control module is at fault, replacement costs are considerably higher, generally ranging from $80 to $200 or more for the part alone.