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On the AUFW roster the first question is whether cold is being made at all or simply not reaching the load. The family covers a single listing, AUFW210ETH-LK. Frost on the rear wall says cold is being made; an even, slow warming with no frost at all says something rather different.
How it presents
- A solid frost sheet on the rear wall — Not the usual light dusting. Cold is being made and cannot get past the coil, which points at the defrost side.
- The unit runs continuously and never cycles off — Running without reaching a set point is the same fault seen from the other side, and it is what makes a cheap fault expensive if left.
- The cabinet recovers for a day after being emptied and left open — A strong sign the coil was iced. The manual defrost cleared it; the reason it formed is still there.
- NEAR MISS - the unit is silent and nothing is cold — That is a no-power, relay or control fault rather than an airflow fault, and it is a different diagnosis.
Ranked causes
- Frost across the evaporator blocking airflow — The tell is a solid frost sheet rather than a dusting, plus a compartment that recovers for a day after a manual defrost. Read against AUFW210ETH-LK and the other numbers in the table, this ranks the same way throughout.
- Door seal, hinge alignment or a door held ajar — Ranked high because it is free to check and because on a freezer it is also the commonest reason the coil iced in the first place. This page generalizes over the whole AUFW roster; where a listing diverges, the table above is what to check.
- Control, sensor or defrost thermostat fault — This is the entry that explains a cabinet where everything visible is correct, and it is where owner diagnosis usually runs out. If your plate reads AUFW210ETH-LK, or any other number in the table above, this is unchanged.
- Compressor, start relay or sealed-system fault — Ranked last because it is both least common and most expensive, which is the combination that punishes a guess.
- Body: The ranking here moves the door seal above the condenser, which is a departure from the brand-generic order. A dedicated freezer is opened rarely but loaded heavily, and a seal held off by a package produces both the warming and the ice that follows it.
The order to work in
- Look at the rear wall for a frost sheet — A solid layer rather than a dusting is the most informative thing visible without removing a fastener.
- Check the door seal with a sheet of paper — Close paper in the door and pull. Free movement means the seal is not gripping at that point.
- Check nothing is holding the door fractionally open — An overfilled basket or a package proud of the shelf line costs a freezer more than almost anything else.
- Body: Work down this list. The thermometer and the seal check need no tools at all and between them they account for most warming-freezer calls on a cabinet of this type.
Before you open anything
Safety
Isolate the unit before any panel comes off - unplug it or switch off its breaker - and remember a capacitor can hold a charge after the power is off. Do not use a heat gun against the liner to speed a defrost; the plastic distorts permanently and time does the same job safely.
Models in the AUFW family — The model roster for this family. This page covers all of it, and nothing on this page is claimed of one listing and not another. Every listing in the roster shares one number series, so the access notes below hold across the roster.
Reference| Model number | Family key |
|---|---|
| AUFW210ETH-LK | arctic-wind:freezer:aufw |
When to call a technician
Call once the thermometer, the seal and the condenser area are all confirmed good and the compartment is still warming. On the AUFW roster the next step is the coil panel, which means an emptied cabinet and exposed fins. Call immediately if there is oil in the machine compartment.
Other pages for this family
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