Technicians sometimes use a powerful magnet to manually "unstick" a seized EEV body. Prevention Tips
If you are comfortable opening the unit, ensure the wire harness connecting the indoor unit to the outdoor unit is secure. A loose communication wire is a frequent culprit for "9" series errors in O General models. Technical Solutions for Professionals o general ac error code 9c
O General units are sensitive to power surges. Using a high-quality stabilizer protects the delicate PCB and EEV. Technicians sometimes use a powerful magnet to manually