GE · Air Conditioner error code
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Guide · Air ConditionerMost PTAC brands store fault codes that can be shown with a button combination on the control (for example GE Zoneline uses a MODE + another key sequence on some models). Read the active code, fix the cause, then clear it.
Guide · Air ConditionerIce forms when the coil gets too cold, nearly always from low airflow or running in cool weather. Thaw first, then fix airflow. Repeated icing with good airflow suggests low charge, which is sealed-system work.
Component test · Air ConditionerMini-split outdoor boards rectify line voltage to a high DC bus and drive the compressor and fan. Field checks are input power, communication, error codes and compressor winding balance. Board DC bus voltage is dangerous after shutdown.
GE · Air Conditioner
E1
Temperature sensor fault (model-specific sensor)
GE · Air Conditioner
E2
Room temperature sensor fault
GE · Air Conditioner
E4
Anti-freeze protection
GE · Air Conditioner
F9
Indoor coil freeze protection
GE · Air Conditioner
FL
Internal water tank full
GE · Air Conditioner
P1
Condensate pump / water full