What this usually is on these models
On the Alpicool DT 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 two codes in this family share the DT prefix and differ only in what follows it, running from DT25 to DT35.
What the owner actually sees
- 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.
What it usually turns out to be, in order
- The setpoint, the units, and the control's own modes — First. Controls get changed by accident far more often than they fail. A mode selected from a menu, a display left in the other unit, a button pressed by a stacked load: each gives a cabinet that is doing exactly what it was told and nothing that the owner wanted. The same check covers everything from DT25 to DT35; 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: Two codes, one DT prefix, DT25 at one end and DT35 at the other. Nothing in the record separates these codes by generation or by control type, so no step below depends on knowing which one you have. 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.
Check in this order, and why
- 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 DT25 to DT35.
- Plug it into a different socket, directly — No adaptor, no extension, nothing else on the same outlet. A machine that cools properly on the new socket has told you the fault was never inside it.
- 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.
Safety first
Safety
Unplug the cabinet or switch off its breaker before removing any panel, and remember that a capacitor can hold a charge after the power is off. Nothing in this order requires getting inside. Never put a heat source near the coil to hurry a thaw, and never puncture frost with a knife or a screwdriver: the plate under it is thin, and what runs behind it is under pressure.
Models this page covers — The two model codes recorded for this family; the record carries no column separating them.
Reference| Model number | Family key |
|---|---|
| DT25 | alpicool:refrigerator:dt |
| DT35 | alpicool:refrigerator:dt |
When to call a technician
Call once the checks above are clean: a cabinet on a sound supply, in open air, with a seal that grips and a setpoint you have set yourself, has a fault worth paying to diagnose. Call straight away, without working the list, if you can smell burning, if the compressor is tripping the protection in the room, or if there is oil anywhere on the tubing — oil outside the pipework means the system is open, and every hour it runs after that costs more to put right.
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.
