Refrigerator /freezer stopped cooling. All inside/outside fans/lites run. Compressor not warm(room temp or cooler) - may not be running-not audible. Have infrequent spurious lock function lite on front panel controls? Checked for stuck in defrost cycle by checking for defrost heater on- but not lighted or warm. 10 to 15 days ago defrost cycle failed causing "freezer okay/refrigerator warm"- defrost thermostat was pried out by ice buildup, reassembled and worked excellent since. Replaced thermostat yesterday after this new problem was detected before realized not cooling at all. Suspect compressor run capacitor? Have not taken any readings on control boards or thermistors.(seem to be multiple thermistors in freezer compartment) GE GSS25KGPABB. Help Please.