Sub-Zero Error Code Library

Complete Sub-Zero Appliance Error Reference
Refrigerator / Freezer Error Codes
EC40
Compressor not running
EC50
Condenser fan failure
EC51
Evaporator fan error
EC52
Defrost system failure
EC53
Temperature sensor fault
EC54
Door switch error
EC55
Communication failure (main board)
EC56
High temperature alarm
EC57
Low voltage detected
EC58
Ice maker system fault
Ice Maker Error Codes
EC10
Ice maker motor jam
EC11
Ice tray not detected
EC12
Water fill error
EC13
Harvest cycle failure
EC14
Sensor calibration fault
EC15
Ice bin full sensor error
System Messages
PF
Power failure detected
PO
Power on reset
dO
Door open warning
CL
Control lock active
SH
Service mode active
rS
Reset required
AL
High temperature alarm