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error Della
Error Code EF
Outdoor fan motor fault — outdoor blower not functioning correctly.
? What Causes This
Faulty or worn out blades, broken bearings within the motor assembly.
✓ How to Fix It
Service professional must fix or replace damaged components in the system to restore proper airflow control.
Source: page 40 of the official manual
From the manual
This error code appears in:
Della 048 MS T1159k