Cc for Model Number TBX21CIBLRBB Defrost system definitely not working as ice/frost build up is thick. Checked the heater, it is good. Checked the timer, it appears good. Replaced thermostat, did not fix problem. What else could it be?
Answer Hello CC. If the thermostat is new, and the unit does not defrost, you will have to replace either the heater or the timer to repair the unit. Read More... Answered by AppliancePartsPros.com | Tuesday, September 8, 2015