Press and hold the and Set Timer (Up) buttons simultaneously for 3 seconds. The remote will display the active error code.
If the wiring is fine and the filters are clean, the motor itself might be the issue. Over time, the bearings inside the motor can seize up, or the internal windings can burn out. If the motor cannot physically spin, the sensor will trigger the 9C code. o general ac error code 9c
If cleaning the unit does not resolve the issue, contact a certified HVAC technician. Dealing with the PCB and motor replacement involves handling delicate electronics and high-voltage components. Press and hold the and Set Timer (Up)
When the O General AC error code 9C appears, you may notice one or more of the following symptoms: o general ac error code 9c