The short answer
On the ARBA family this is far more often a heat-rejection or an air-path problem than a dead compressor, and the compact manual-defrost refrigerator construction is why. There is no automatic defrost on this platform, so a frost slab on the plate and a knocked cold control lead the list.
What you observe on these models
- A thick even rind of ice on the evaporator plate inside the box — On a manual-defrost cabinet that slab is insulation, and it is the commonest reason a compact stops holding.
- The cabinet holds overnight and drifts through the day — That pattern is about the room and the door use rather than the machine.
- One shelf is noticeably colder than another — Uneven temperature is an airflow story; uniform warmth is not.
- The problem began after the cabinet was moved or restocked — A history like that points at placement, levelling or loading before anything internal.
- NEAR MISS — the cabinet is silent and nothing is cold — That is a no-power, cold-control or start-relay fault and it belongs on a different page.
Causes, most likely first on the ARBA family
- The cold control setting and its sensing bulb — First on this platform: a dial knocked back while loading, or a sensing bulb pushed out of contact with the evaporator plate, gives a cabinet that never runs long enough.
- A frost slab on the evaporator plate — Second: there is no automatic defrost here, so ice accumulates until the plate cannot take heat out of the air at all.
- Airflow through the vent between the two compartments — Third: a vent blocked by a tall box, or a damper stuck shut, leaves the freezer right and the refrigerator warm, which is the single most common call on this platform.
- Ambient temperature and ventilation at the grille — Fourth: these cabinets are built into bars and islands where the exhaust has nowhere to go.
- Control setting and the sensor that feeds it — Last: set points get nudged during cleaning, and on a cabinet with more than one zone a setting made on the wrong zone looks exactly like a cooling fault.
Check in this order, and why that order
- Check the cold control and look at where its sensing bulb sits — It is the first thing that gets knocked and the first thing to rule out; a bulb that has sprung away from the plate explains a cabinet that barely runs.
- Look at the evaporator plate and judge the thickness of the ice — Anything past a light frost is insulating the plate, and defrosting the cabinet is both the test and the fix.
- Paper-test the gasket and put a level on the top of the cabinet — Two minutes for both, and they explain most cabinets that cool but never quite hold.
- Pull the cabinet out and look at the condenser and the gap behind it — Dust on the coil and a cabinet jammed into a cupboard are the same fault seen from two sides.
- Listen at the compressor for a click-buzz-stop cycle — Worth doing once the checks above are clean.
Before you open anything
Safety
Unplug the appliance or switch off its breaker before removing any panel. A capacitor can hold a charge after the power is off. Treat that as the first step of every check below that involves a panel, a grille or a cover.
Models in the ARBA family — The numbers this page covers.
Reference| Model number | Family key |
|---|---|
| ARBA115S | avantgarde:refrigerator:arba |
When to call a technician
The line on a compact manual-defrost refrigerator is the rear panel and the sealed system. On these models the line falls at the rear panel and the sealed refrigerant circuit. Call without working through anything at all for a compressor that knocks hard enough to move the cabinet, or any smell of burning.
Nearest pages of this class
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
