The short answer
When a Café refrigerator runs continuously and still reads warm, the fault is normally on the heat-rejection side or the air path, not inside the sealed system. That puts a temperature sensor reading wrong at the top of the list here and a defrost cycle that has stopped clearing the evaporator at the bottom.
What owners actually report
- The cabinet is warm but the unit is clearly running — You can hear the compressor and feel the cabinet vibrate, yet the air inside is only mildly cool.
- It only struggles in hot weather — A margin problem: the unit is coping until the room gets warm.
- NEAR MISS — the display reads correctly but a thermometer disagrees — That is a sensor or control question, and it belongs on the controls page.
Likely causes on this kind of machine
- A temperature sensor reading wrong — A sensor that has drifted rather than failed tells the control the cabinet is already cold, so the unit stops cooling while insisting nothing is wrong. Ranked next because the boards act on what the sensors report: a sensor reading wrongly produces behaviour that looks like a failed component somewhere else entirely.
- Blocked return air or a stalled evaporator fan — Cold air has to circulate. Air distribution decides what the owner feels, so a blocked path outranks the components behind it.
- A damper or diffuser stuck shut — The flap that meters cold air into the fresh-food compartment can stick, leaving one side cold and the other warm with nothing else wrong. It sits at this point because an air-path fault mimics a refrigeration fault exactly, and it is visible without tools.
- A defrost cycle that has stopped clearing the evaporator — Ice builds on the coil, air can no longer pass through it and the cabinet warms while the compressor runs harder than ever.
The order of checks
- Put a hand on the rear grille or the condenser area — Strong heat means the system is working and the problem is heat rejection.
- Listen for the internal fan with the door open and the switch held in — A running evaporator fan separates an air-path fault from a refrigeration one in seconds and costs nothing.
- Look for an air vent buried behind food — Cold air has to leave the vent before it can reach anything.
The owner-side procedure
- Check the doors close themselves from a hand-width open — If not, level the cabinet slightly nose-high and try again.
Tools: spirit level
- Empty the cabinet of anything blocking a vent — Leave a clear path in front of every opening on the rear and side walls.
- STOP at the point where a panel or a meter is needed — Testing a fan motor, a defrost heater or a sensor means live terminals behind a panel.
Power, panels and what not to do
Safety
Nothing on this page needs a panel removed. If you go further than the checks above, unplug the unit first — a capacitor can hold a charge after the power is off — and never tape a door switch closed to watch a fan run.
When to stop and call
The line is the panel. Everything in front of it is yours; a fan motor, a defrost heater, a sensor or anything on the sealed system is licensed, metered work.
Related pages of the same kind
What this page does not cover
Generalized information: this describes the refrigerator class, not your serial number. Anything tied to a chassis — pinouts, part numbers, diagnostic key sequences — is absent by design. A family- or model-level page, where one exists, is linked below and takes precedence. The brand overview page linked below covers the other problems on this machine.
Links: - [Common Café Refrigerator Problems](/blog/caf-refrigerator-problems) - [Common Café Refrigerator Problems](/blog/caf-refrigerator-problems-2) - [Café Refrigerator: Abnormal Noise or Vibration](/blog/caf-refrigerator-abnormal-noise)
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
