Customer Questions and Answers for Washer Main Control Board by Frigidaire

Hello Don, Fault code F-31 means the pressure sensor is not communicating with the control board. The service manual refers you at this point to "test 4". This is what test 4 is in the manual: Inspect the wiring between the pressure sensor and the control board. Defective wiring, Correct wiring. Good wiring, Replace the pressure sensor. If this does not correct the problem, replace the control board. Let us know if we can assist you further.