!!
critical Della
Error Code E4
Refrigerant system leakage or fault — refrigerant levels are compromised.
? What Causes This
A malfunction detected within the refrigerant cycle, including leaks in the pipe, compressor failure, etc.
✓ How to Fix It
Contact professional service immediately to address issues related to refrigerant and cooling system integrity. Professional repair/ replacement of damaged components is necessary.
Source: page 40 of the official manual
From the manual
This error code appears in:
Della 048 MS T1159k