The short answer
A cabinet that runs without getting cold is almost never a dead compressor on this platform; it is air that has stopped moving. The cold is still being made; it simply cannot reach the shelves, which is why the back of the freezer is the first place to look and the condenser is the second. Most of what follows is owner work. The one item that is not is also the least likely, which is why it sits at the bottom of the list. The second column is the family key, and the first is what the rating plate will say.
What you actually see
- The cabinet recovers overnight and fails again by evening — A marginal system keeping up while the kitchen is cool and losing ground once it warms. It points at heat rejection rather than at the air path.
- The freezer holds and the fresh-food side does not — On a single-evaporator cabinet the fresh-food side is fed by air from the freezer, so it fails first when that air stops.
- The compressor never cycles off — It runs without ever reaching the set point, which is the same fault seen from the control side rather than the air side.
- Food in the door is spoiling before food at the back — The door is furthest from the air supply, so a partial airflow loss shows up there first.
- NEAR MISS — the unit is silent and nothing is cold — Silence is a different page. A dead cabinet is a supply, start-relay or control fault, not the airflow fault this page covers.
What it turns out to be, in order
- Airflow blocked by a frosted evaporator — Top of the list here, and by a distance. The defrost logic on these cabinets degrades before it stops, so ice accretes over weeks while the owner notices only that things are less cold than they were.
- Door seal not closing, or a door left ajar by a shelf — Cheap to confirm and easy to dismiss. Warm air arriving faster than the unit can remove it produces continuous running and a cabinet that never gets there.
- Defrost heater, thermostat or timer fault — This is what makes the frost in the first cause permanent rather than cyclical. It is the point where owner diagnosis usually stops and a meter is needed.
- Sealed-system or compressor fault — Last, and the reason the order matters. It is the least likely cause on this roster and the only one that is not owner-serviceable at any level.
The order to check in, and why
- Listen at the freezer with the door open and the switch held in — The evaporator fan should run. Hearing it separates the two likeliest causes before any panel comes off.
- Feel the condenser tubing and the compressor shell — Only worth doing once the steps above are clean, and only as an indication of whether the sealed system is working at all.
- Empty the cabinet and run it with the doors shut overnight — Removes the load and the door openings as variables. What it does overnight tells you what kind of fault this is.
Before you open anything
Safety
Kill the supply before anything else happens: unplug it, or switch the breaker off. A capacitor can hold a charge long after the power has gone.
Models in the CFC family — The listings below are what this page covers; it is a family page, not a model page.
Reference| Model number | Family key |
|---|---|
| CFC-18 | atlas-homegoods:refrigerator:cfc |
When this stops being owner work
Anything reachable without a tool is yours; anything that needs the rear panel off is a service call on this family, because the panel is foamed against the liner on some of these listings and comes off in one direction only. Refrigerant work is licensed regardless of who is holding the gauges.
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.
