Fisher & Paykel Washer Error Code Err 12

Err 12 means the water level inside the washer tub has exceeded the flood protection threshold set by the control system. The machine shuts down automatically as a safety measure to prevent overflow. The fault is most often linked to a problem with the pressure sensor hose that monitors water level, such as a kink, disconnection, or damage.

No, you should not attempt to run a wash cycle while Err 12 is active. The error indicates a potential overfill condition, and continuing to operate the machine could result in water overflowing onto the floor and causing damage to your home or the machine itself. Address the underlying cause before resuming use.

If the fix is simply reseating or straightening the pressure sensor hose, the repair can cost nothing beyond your time. If a replacement pressure sensor hose is needed, parts are generally inexpensive, typically in the range of $10 to $40. A faulty pressure sensor or water inlet valve replacement, including parts and labor from a technician, can range from $100 to $300 depending on your location and the specific parts required.

Start by locating the pressure sensor hose and tracing it from the air bell at the base of the tub to the pressure sensor. Check for any kinks, pinches, cuts, or loose connections and correct any issues you find. If the hose is intact and properly seated, the pressure sensor or water inlet valve may need to be tested and replaced. After making any corrections, reset the machine by powering it off and back on to see if the error clears.

Powering the machine off and back on may temporarily clear the displayed error, but if the underlying cause has not been fixed, the code will return as soon as the machine attempts to fill again. A reset alone is not a repair. You need to inspect and correct the pressure hose connection or replace a faulty component before the fault will stay cleared.