Key Points The temperature display/control panel can be used to access self-diagnostic mode to help the technician (in this case, you)Self-diagnostic mode can be used to identify failed or improper operation of components (i.e. defrost heater, damper, fans, temperature sensors, etc.)Simple test to see if the main electronic board is working Intro to Self-Diagnostic … [Read more...] about How to Access the Self-Diagnostic Feature on GE PFCF1NFW Refrigerator Using the Temperature Display Control