In some VRF units, it can indicate a communication error with the electronic expansion valve.
This report is for informational purposes only. Always refer to the official O General service manual for your specific model. Electrical repairs should be performed by licensed HVAC technicians. o general ac error code 9c
buttons for 3 seconds while the unit is off. This might show a more specific "E" code (like E:91 or E:9C). AirChill AC Maintenance and Duct Cleaning ⚠️ When to Call a Technician In some VRF units, it can indicate a
If the voltage is significantly lower than 200V, the AC will continue to show the 9C error for safety In some VRF units