Gree · Air Conditioner error code
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Guide · Air ConditionerLight frost that clears every hour or so is normal. A solid block of ice means defrost isn't starting or finishing. Check outdoor fan, defrost sensor and board with a forced defrost before suspecting refrigerant.
Guide · Air ConditionerIndoor head leaks are almost always drain related: clogged pan or line, poor line slope, a failed condensate pump, or the head not level. Ice on the coil from low airflow or low charge is the next suspect.
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.
Gree · Air Conditioner
C5
Jumper cap / configuration error
Gree · Air Conditioner
E1
High-pressure protection
Gree · Air Conditioner
E3
Low-pressure protection
Gree · Air Conditioner
E5
Overcurrent protection
Gree · Air Conditioner
E6
Indoor/outdoor communication fault
Gree · Air Conditioner
E7
Mode conflict