The short answer
On a commercial reach-in the cabinet is rarely broken — it has lost capacity, and in a kitchen it loses capacity through its condenser long before anything else. Ranked first on this platform: A grease-blanketed condenser. The checks below follow that ranking, and the first of them need no tools and no panel removed.
What you observe
- It holds overnight and loses temperature during service — A cabinet that fails only under load has lost capacity, not function.
- The door needs a push to close and does not swing shut on its own from a few inches open — A door that has lost its self-close is the commonest reason a reach-in runs warm.
- Frost or condensation appears near one edge of the door — Air leaking past a gasket condenses at the point where it enters, which marks the failure for you.
- NEAR MISS — the freezer is fine and only the fresh-food side is warm — A split like that points at the air path between the two compartments, not at the cooling itself.
Causes, most likely first on this platform
- A grease-blanketed condenser — In a commercial kitchen the condenser collects aerosolised cooking oil along with the dust, and the two combine into a film that a brush cannot lift. It ranks first on this platform because a condenser in a kitchen loads with aerosolised cooking oil as well as dust, and that film builds until the cabinet can hold overnight but not through service — which is exactly the complaint a busy line reports.
- Worn self-closing hinges leaving the door ajar — Commercial cabinets rely on cartridge hinges with a cam that pulls the last few degrees of the door closed. It ranks second here because the self-closing cartridge hinges are a wear part on a commercial cabinet and they wear on a schedule measured in months, not years.
- A door gasket that no longer seals — A gasket that has hardened, torn or taken a permanent set lets a thin stream of room air into the cabinet continuously. It sits third because the causes above it account for more of these cases, not because it is unlikely.
Check in this order, and why
- Look at the condenser fins and run a finger across them — Dust brushes off; grease does not, and the difference decides whether a vacuum will help. It leads because it tests the top-ranked cause.
- Open the door a few inches and let go — It should close itself. Tests the second-ranked cause.
- Close the door on a slip of paper and pull it out, at several points around the frame — Where it slides out freely, the gasket is not sealing there — and it takes a minute. Tests the third-ranked cause.
What an owner can safely check
- Degrease the condenser with a coil cleaner rather than a brush — A brush polishes grease into the fins.
Tools: coil cleaner, brushAbout 30 min
- Check every door on the cabinet for self-close and note which ones fail — It is a five-minute check that names a cheap part.
About 10 min
- STOP here — the remaining causes are diagnosed with a meter, not by eye — Record which of the checks above changed anything. That record is worth more to the visit than another attempt.
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.
When to call a technician
A technician is the answer once the airflow, the door and the condenser are all clean and the cabinet still will not hold temperature, because everything left on the list is measured rather than looked at.
Nearest pages of this class
What this page does not cover
This page is written for the Migali refrigerator as a class, not for one family or one model line. Where a family- or model-specific page exists for your unit, that page is the more specific answer and the one to read first. Deliberately not here: part numbers, wiring colours and disassembly order, which differ by family.
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
