In short
Taking the APR series on its own, a cabinet that runs and will not get cold resolves most often to a stalled defrost cycle icing the evaporator over. The brand page puts an ambient temperature the cabinet was never built for first; here it moves down, because what sits behind which panel on these models changes what is worth checking first. 3 of the 4 causes below can be checked without a tool; the rest need a technician.
What the machine is doing
- It recovers overnight and loses it again by the afternoon — A cabinet that only fails when the room is warm is telling you about its clearance and its coil.
- A sheet of frost has built on the back wall inside — Not the usual light dusting, but a slab that closes off the vent openings behind it.
- The back of the cabinet is very hot to the touch — Heat is being made and not carried away, which is a clearance and coil question before it is anything else.
- NEAR MISS — the cabinet is cold but the ice maker is empty — Cooling is fine; the problem is in the ice circuit, which is covered on its own page.
Causes, most likely first on the APR series
- A stalled defrost cycle icing the evaporator over — Defrost failures do not announce themselves. The heater or its sensor gives up, frost accumulates until it bridges the fins, and from then on you have a cold block of ice with no air moving over it.
- A door gasket that has stopped sealing — Rubber loses its spring where it is folded, and a cabinet that has been moved or reversed rarely closes as tightly afterwards. The machine runs constantly because it is cooling the room through a gap.
- Blocked internal vents or an overloaded cabinet — Air has to go somewhere. Stack the shelves to the roof, or push a box against the back wall, and the cold sits in one place while the rest of the box drifts up.
- A start relay or overload that will not bring the compressor up — A compressor that tries, clicks off, and tries again a few minutes later is being cut out by its overload. That is a starting-circuit fault, not a cooling fault, and it needs a technician.
What to check first, second, third
- Empty the cabinet down to a few items and watch it for a day — Capacity faults and airflow faults behave completely differently under a light load, and this is how to tell them apart for free.
- Look at the back wall inside for a frost slab — If the fan is running and the panel is iced, you have found the cause and the rest of the list does not apply.
- Only then consider the control and the sealed system — They are last because they are the two that cost money to be wrong about.
Safety first
Safety
Treat the machine as live until it is unplugged or its breaker is off, and treat it as charged even then — a capacitor holds its charge after the power is off. Refrigerant work is licensed work: the sealed system is not to be opened, tapped or topped up by an owner at any level of experience. Leave every interlock and door switch exactly as you find it: each one cuts power to something for a reason.
Models in the APR family
Reference| Model number | Family key |
|---|---|
| APR-18RSG | ausranvik:refrigerator:apr |
When to call a technician
Draw the line this way: what you can see, reach and clear with the machine isolated is owner work; refrigerant work of any kind, and any test that puts a meter on a live terminal is not. On this page that puts a start relay or overload that will not bring the compressor up on the far side of the line. Call straight away for anything that smells of burning, trips a breaker or gives a tingle from the cabinet, whatever else the page says.
Other problems covered for the APR series
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
