MHI · R410A Systems
This code indicates a malfunction of the indoor unit's fan motor, which can prevent proper airflow and heating/cooling.
Click steps to track your progress.
Turn off the power to the indoor unit at the circuit breaker.
Check if anything is physically blocking the indoor fan blade from turning.
Attempt to gently spin the fan blade by hand to check for resistance (ensure power is off).
If the fan does not spin freely or the error persists, contact a qualified technician to inspect or replace the fan motor.