The short answer
On the Alpicool CLS refrigerator a complaint that reads as "it runs but nothing is cold" is far more often the setpoint, the units, and the control's own modes than a failed compressor. The three codes in this family share the CLS prefix and differ only in what follows it, running from CLS35 to CLS55.
What you observe
- It never stops running — A healthy cabinet cycles. One that runs from morning to night is one that is never reaching the number it was set to.
- It is plainly running, and nothing inside is cold — The compressor note is there and the panel is lit; the contents disagree with both.
- Frost has banked up on the cold plate — A sheet rather than a light dusting, often heavier at one end than the other.
- NEAR MISS — it is cold but there is water underneath it — A cabinet that holds temperature and leaks is the water-leak page, not this one.
Causes, most likely first on this family
- The setpoint, the units, and the control's own modes — First. A panel reading in the other temperature unit, an economy or protection mode left on, or a setpoint nudged by something leaning on it all present as a cabinet that is not cold enough. A refrigerator holds food safely at 40 °F (4 °C) or below; a control only cools to the number it was given. The same check covers everything from CLS35 to CLS55; the record gives no reason to treat those codes differently here.
- The supply the cabinet is running from — Second. A compressor draws several times its running current for the moment it starts. A thin extension lead, a tired socket or a long run sags at exactly that moment, the control sees the dip and shuts down to protect itself, and tries again a minute later. The panel stays lit throughout, which is why this gets mistaken for a dead cooling system.
- A loss in the sealed system — Last, always. It is the rarest of these causes and the only one that cannot be touched without recovery equipment and a licence. What it looks like is a machine trying hard and achieving nothing: long runs, a condenser that stays lukewarm, and a cabinet that drifts back up as fast as it comes down.
- Body: Three codes, one CLS prefix, CLS35 at one end and CLS55 at the other. The record does not say what the numbers in the codes stand for, which is why this page reasons from what the cabinet does rather than from a specification. When the record cannot tell you which control a given code carries, you start at the panel: the settings are the one part of this fault that costs nothing to rule out and that no amount of dismantling will reveal later.
First, second, third
- Clear every mode and set the temperature deliberately — Check which unit the panel is displaying, cancel any economy or protection setting, then leave the cabinet alone for several hours before judging it. Identical on every code from CLS35 to CLS55.
- Move it to a socket you trust, on a short lead — Nothing else you can do costs a minute and eliminates a whole branch of the fault tree. If the cabinet pulls down on the new socket, the machine was never the problem.
- Body: Work these in order rather than picking the one that sounds most likely. Each check below removes a whole branch of the list above, and none of them needs a panel off or a tool in hand.
Before you open anything
Safety
Unplug the cabinet or switch off its breaker before removing any panel — a capacitor can hold a charge after the power is off. Everything in the order above is done with the cabinet standing as it is, and none of it needs a panel off. Keep hands and tools away from the compressor and the tubing around it: those lines are under pressure, and a scratch that opens one turns an ordinary repair into a sealed-system job.
Models this page covers — The three model codes recorded for this family; the record carries no column separating them.
Reference| Model number | Family key |
|---|---|
| CLS35 | alpicool:refrigerator:cls |
| CLS45 | alpicool:refrigerator:cls |
| CLS55 | alpicool:refrigerator:cls |
The line between a fix and a service call
Stop and call if the compressor runs and the coil never warms up, if the cabinet trips the circuit it is on, or if the tubing is oily or damaged. Those three are sealed-system findings, and the tools for them are recovery tools rather than hand tools. Short of that, a cabinet that fails one of the checks above is usually fixed by correcting what failed it, at no cost but the time.
The rest of 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.
