Carrier · Residential HVAC Systems
This fault for 18VS,19VS/V-HP/AC units indicates that the outdoor fan inverter has detected an excessive current draw by the fan motor. This is a safety shutdown.
Click steps to track your progress.
Turn off the power to the outdoor unit at the circuit breaker for at least 30 seconds.
Visually inspect the outdoor fan for any debris or obstructions preventing its free movement.
Restore power and observe if the fan attempts to start.
If the over current fault recurs, contact a qualified HVAC technician to inspect the fan motor and inverter.