Carrier · Heat Pumps
The system has entered a lockout state due to high current. This can be caused by high supply line voltage, storm weather, loose wiring, incorrect compressor grounding, or inverter/compressor damage.
Click steps to track your progress.
Check the supply voltage to the Outdoor Unit. If it is high, contact your utility provider.
If adverse weather is suspected, wait for it to subside; the unit should self-recover. Cycle the ODU power if necessary.
Check for any loose wires in the ODU control box area and ensure they are secure.
If the issue persists, contact a qualified technician to inspect compressor grounding and potentially replace the inverter or compressor.