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error Della
Error Code E0
Indoor and outdoor communication fault — failure of wireless communication link between indoor and outdoor units.
? What Causes This
Faulty connection, broken antenna, or radio frequency interference disrupting signal transmission from indoors to outdoors.
✓ How to Fix It
Service technician must address faulty components in the radio-link system.
Source: page 40 of the official manual
From the manual
This error code appears in:
Della 048 MS T1159k