The CUP 3221 Comfort matches the CUP 3021 in general size class, same manual-defrost undercounter format and Comfort-tier control, under its own model number.
Whichever F-number is actually lit and a lingering demo toggle are the two complaints specific to this model, plus the standard under-counter clearance check.
Key Features
- Built-in undercounter combination refrigerator-freezer
- Comfort-tier electronic temperature control
- Standard Liebherr error code diagnostic display
Most Common Issues on This Model
01
Control panel showing an F-series error code — Liebherr documents the problem ranges but reserves the specific-digit meaning for a technician's own service lookup, so we read the exact code before opening anything
02
DEMO mode left switched on from setup or a showroom display, leaving the panel lit with no active cooling
03
Ventilation clearance beneath the counter restricting airflow and straining the compressor over the long run