Edward M San Antonio , TX March 10, 2018 Appliance: Whirlpool Washer GHW9400PT4 Whirlpool Washer Ghw9400pt4: Washer would stop in wash cycle and give an error code of f05. How to replace Washer Water Temperature Sensor. Removed corroded Water Temperature Sensor and installed a new one. The washer still would stop and give an error code of F05. Found that there was a loose wire to the connector, that connected to the Water Temperature Sensor. When the washer was previously serviced, the wire was not properly secured, which caused the wire to come loose with time. After I fixed the loose wire problem, the washer worked. The work was completed a month ago. No more problems. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes