The short answer
When the ATMP line gets loud, the useful question is which noise it is making, not how loud it is. The table on this page covers a small group of model numbers in the same line. Some sounds on these cabinets are normal and one of them is urgent, so this page starts by separating the two.
The observations that separate this fault from its neighbours
- A single loud bang or knock at long intervals — Thermal movement of the liner or a duct, usually around a defrost cycle. It sounds alarming and is not.
- The cabinet rocks when a door is closed — A levelling fault with a noise attached. It also stresses the door seal, so it is worth fixing for two reasons.
- A rhythmic ticking or clicking from inside the freezer section — Usually a fan blade touching ice that has built up around it. It comes and goes as the ice grows and gets shaved back.
- Gurgling, boiling or a trickle after the unit stops — Refrigerant settling and melt water running to the drain. Normal on every refrigerator, and the most commonly reported non-fault.
- NEAR MISS — the noise arrived with a warm cabinet — Then the noise is a clue in a cooling failure, and the cooling page for this family is the right place to start.
What to suspect, in order, on this family
- How the cabinet stands and what it touches — Ranked first because it is free to test and right often: lean on each corner while the unit runs, and a noise that changes as you do has just been diagnosed.
- Things resting against the machine — Second. Trays, bottles and packaging on top of a running cabinet buzz at exactly the frequency the compressor produces, and the noise seems to come from inside the machine.
- The fan and what has collected around it — Third. Once the outside of the machine is ruled out, the fan at the back is the next most likely, and it is the noisiest component on these cabinets when something is caught in it.
- Evaporator fan and ice contact — Fourth. An internal noise that changes when the door is open is this, and it also tells you the defrost cycle is not keeping up.
- The compressor itself — Last, and reached only when everything cheaper has been eliminated. Noise alone is weak evidence against a compressor.
Check in this order, and why
- Time the noise against the cooling cycle — Constant, only while running, or only just after stopping — each points at a different group of causes.
- Check the freezer section for frost near the fan — A rhythmic tick with visible ice is the diagnosis complete.
- Clear the ice and run the cabinet for a day — If the noise returns with the ice, the defrost system is the subject and not the fan.
- Check the back for debris around the lower fan — Power off, torch, and turn the blade by hand to feel for roughness.
- Judge the compressor last and only with its mounts — A noisy compressor with normal cooling is usually a mounting complaint, not a compressor one.
Safety first
Safety
Unplug the appliance or switch off its breaker before reaching behind any panel or near a fan — a capacitor can hold a charge after the power is off, and a condenser fan restarts without warning. The compressor and the tubing around it can be hot enough to burn immediately after running, and the fins at the condenser are sharp. Never defeat a door switch to keep an internal fan spinning while you look at it. A noise complaint on its own does not put food at risk, but check the temperature while you are there: a refrigerator holds food safely at 40 °F (4 °C) or below and a freezer at 0 °F (−18 °C) or below.
Models in the ATMP family
Reference| Model number | Family key |
|---|---|
| ATMP031AEB | arctic-king:refrigerator:atmp |
| ATMP031AES | arctic-king:refrigerator:atmp |
| ATMP031AET | arctic-king:refrigerator:atmp |
| ATMP031AEW | arctic-king:refrigerator:atmp |
| ATMP032AEB | arctic-king:refrigerator:atmp |
| ATMP032AES | arctic-king:refrigerator:atmp |
The line between an owner fix and a service call
Call when the noise is a bearing or a compressor rather than an obstruction or a resonance — that is, when it survives the free checks and does not change with ice, debris, levelling or contact. Call immediately for a burning smell, a hiss, or a noise that arrives alongside a warm cabinet. On the ATMP line everything reachable with the machine pulled out and the power off is owner work; anything behind the evaporator cover is not.
Other problems covered for 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.
