The short answer
On the Caf QC family a cabinet that is running but not holding temperature is far more often an airflow fault than a dead compressor: the evaporator ices over, the cold stops moving, and the compressor runs on without ever satisfying the sensor. With six model tags in the matrix below, this family covers several passes of the same platform, and a cause that is a running change on one group can be absent on another. Two of the checks that separate those cases need no tools at all, and they are the ones the brand-generic article cannot order for you.
What you can observe on these models
- The display still shows the set temperature while the food is warm — The panel reports the sensor, not the shelf. A sensor reading out of range will hold a confident wrong number.
- The cabinet sides feel hot to the hand — Condenser tubing runs through the shell on many builds; heat there says the system is working hard against a fouled condenser.
- NEAR MISS — the unit cools but rattles or grinds — Noise with normal temperatures is a fan, mount or ice-maker problem; the noise page covers it and this one will not.
Causes, most likely first on this family
- Stalled defrost leaving the evaporator iced over — First on this platform because it is the only cause that produces both a warm cabinet and a running compressor while every visible part still looks healthy.
- Evaporator fan motor stopped or obstructed — Second: with the coil clear and the fan dead, the same warm-cabinet symptom appears with no frost sheet to explain it. Open the freezer and listen before you unplug anything.
- Condenser coil or condenser fan choked with dust and pet hair — Third — common in dusty rooms and easy to clear, but it rarely produces a total loss of cooling on its own.
- Door seal, alignment or a compartment left ajar — Fourth: a constant heat load looks exactly like weak cooling, and it is the cheapest of all the causes to rule out.
Check in this order, and why
- Unplug overnight, then run it and time the recovery — If cooling comes back for a day or two and then fades, the defrost circuit is the cause and nothing else on the list behaves that way.
- Vacuum the condenser and confirm the condenser fan spins — Do this while the unit is already unplugged; it costs one pass with a brush and removes a whole branch of the tree.
- Listen for the evaporator fan on restart — A fan that starts and then falls silent as the cabinet cools is a blade fouling on ice, not a dead motor.
Before you open anything
Safety
Unplug before any panel comes off — a capacitor can hold a charge after the power is off. Thaw ice off the evaporator with time or a hair dryer on low from a distance, never with a pick or a knife. A refrigerator holds food safely at 40 °F (4 °C) or below and a freezer at 0 °F (−18 °C) or below, so move anything perishable out before you start rather than after, and keep the doors shut while you work.
Models in the QC family
Reference| Model number | Family key |
|---|---|
| QC23C_5I_W | caf:refrigerator:qc |
| QC23QC_5I_W | caf:refrigerator:qc |
| QC28C_5A_N | caf:refrigerator:qc |
| QC28QD_5A_N | caf:refrigerator:qc |
| QC28_5I_T1 | caf:refrigerator:qc |
| QC29C_5I_T | caf:refrigerator:qc |
When to call a technician
Call when the checks above come back clean, when the evaporator refuses to stay clear after a manual thaw, or the moment a component test needs a meter. Refrigerant is the hard line: the tools and the licence for sealed-system work are not owner items on any of these models. Call the same day if food is already above 40 °F (4 °C) and the cabinet is not recovering, because the clock on the contents is shorter than the clock on the repair.
Other faults covered for this family
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
