Richard L Ennis , TX January 08, 2015 Appliance: Model PHS66EJESS0 Freezer won't defrost fridge beeps after each cycle control board switches "off than on" when i try to adjust the temperature fridge won't shut off at the control board I replaced the control board. 7 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes