Bob for Model Number KBFA20ERSS just replaced front electronic control board after freezer ice buildup and freezer temp "diving" below setting to -10F degrees (Refrig temp was OK). Now after 2 days refrig temp seems stable BUT freezer temp now going in opposite direction rising above setting to +20F degrees with no apparent frost buildup yet. Any thoughts as to added parts needed or if bad new front control board please? Frig is 15+ yrs old and not sure if I should put significant additional repair $s into it. Thanks for feedback.
Answer Bob, it would be recommended that the freezer thermistor 12002355 is tested for resistance. At 36°F, the sensor should measure 29,500O and it should measure 10,000O at 77°F. If the sensor tests properly, the failure would likely be a failed main control WP12782036SP. Unfortunately, the main control has been discontinued and is no longer available. Read More... Answered by AppliancePartsPros.com | Monday, March 15, 2021