The short answer
The short version: this is almost never a dead compressor. On this cabinet the first thing to suspect is dead fan: cold is made and never moved, because that is what stops the cold air reaching the food compartment. Work down the ranking before spending anything.
The symptoms, and the ones that mean something else
- Food in the door spoils before food at the back — The door is the warmest place in any cabinet, so it fails first when the whole cabinet is drifting warm.
- The interior light stays on when the door is shut — Check by pressing the door switch. A light left burning adds heat to a cabinet that is already struggling.
- Frost building up on the back wall of the freezer — A sheet of ice rather than the usual light dusting means air is no longer passing over the coil.
- NEAR MISS — the unit is completely silent and nothing is cold — Nothing running at all is a power, start-device or control fault, and it is a different page. Check the outlet and the breaker before anything else.
What actually causes this, ranked
- Dead fan: cold is made and never moved — Two fans matter here. The evaporator fan pushes cold air into the cabinet; the condenser fan pulls room air across the hot coil. Lose either and the symptom is the same warm cabinet with a compressor that never stops. Top of the list, because everything below it is harder to check and less likely to be the answer. A commercial-duty unit sees more cycles in a month than a domestic one sees in a year, so the wear items head the list and the electronics sit well below them.
- Iced-over evaporator coil starving the vents — Cold reaches the food compartment as moving air, not by radiating through the walls. When the evaporator ices up, that air path closes, and the cabinet warms steadily even though the compressor is working exactly as designed. Second, because it produces the same complaint from the other side and is still an owner-side check.
- Heat that cannot leave: blocked coil, blocked clearance — Clearance matters as much as cleanliness. A cabinet installed into tight millwork or pushed against a wall recirculates its own hot exhaust, so the coil is fed warm air and gives up correspondingly less heat. It sits here because it is a genuine cause with a narrower set of circumstances behind it.
- Compressor, start device or the sealed circuit itself — A sealed circuit that has lost charge or blocked cannot be judged from outside, which is precisely why it belongs at the end of a list of things that can be judged from outside. Last, and deliberately so — it should be where a diagnosis ends rather than where it starts.
What to check first, second, third
- Listen at the freezer with the door open and the door switch pressed in — The evaporator fan should run. Silence there, with a running compressor, is a strong result. First, and it costs nothing but a minute of attention.
- Hold your hand at the fresh-food vents with the door open and the fan running — No air movement at the vents, with a cold freezer, points straight at a blocked coil or a stopped fan. Second in order, and only worth doing once the first has come back clean.
- Pull the cabinet out and look at the coil at the back or underneath — If you cannot see metal through the dust, that is the fault. Look at the gap behind and above the cabinet at the same time. Leave this one until the cheap checks are done; it is the slowest of the three.
What to do, step by step
- Clear debris from around the condenser fan blade through the base grille — Anything that has been pulled in from the floor can stop a blade without damaging the motor.
Tools: vacuumAbout 15 min
- Empty the cabinet and leave both doors open for a full manual defrost — Cold restored afterwards confirms the defrost system as the cause rather than the mechanism.
Tools: towels, coolerAbout 90 min
- Clear whatever sits on top of and behind the cabinet — Boxes on the lid and a bag jammed behind it are the most common version of no clearance.
About 10 min
- STOP at the point where a panel has to come off to go further — Everything past that point is measured, not looked at, and measuring means live terminals. Book the visit instead.
Read this before you start
Safety
Pull the plug or turn off the breaker first; a panel that comes off with power on is a panel with live terminals behind it. Move the cabinet with the doors taped shut and take the weight with two people — a loaded cabinet is far heavier than it looks, and a tipped one lands on whoever is beside it.
When to hand it over
It is a service call the moment the fault is behind the evaporator panel or on the sealed system. Everything before that is a vacuum, a cloth and a thermometer, and it resolves most of these complaints.
Other pages for this refrigerator
Scope, and what is missing from it
This is the generalized page for Koolmore refrigerators. If a page exists for your particular family or model line, it is linked from this section and it outranks this one for your unit. What is deliberately absent: part numbers, connector pinouts and the service-manual sequences, which are family-specific and wrong the moment they are generalized.
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
