The short answer
On the ATMP refrigerator family a cabinet that runs but will not hold temperature is far more often an airflow problem than a dead compressor. The table on this page covers a small group of model numbers in the same line. The first two checks below need no tools and no panel off; only the last of the ranked causes is a sealed-system job.
What you observe
- The unit never cycles off — A compressor that runs without a break is a compressor that never reaches its cut-out point. Continuous running is the same fault seen from the control side.
- The cabinet sides or the back are noticeably hot to the touch — Rejected heat has to go somewhere. Hot panels with a warm interior usually mean the heat is not getting away from the condenser.
- The freezer section holds but the fresh-food section does not — Cold is being made and is not reaching the upper cabinet — an airflow split, not a cooling failure, and it points straight at the vent path.
- NEAR MISS — the cabinet is silent and nothing is cold — Silence changes the question entirely: that is a no-power, start-device or control fault, and it belongs on a different page.
Causes, most likely first on the ATMP line
- The compressor start device — First on the ATMP refrigerator family. A start device that is failing intermittently lets the compressor start, run briefly and drop out on its overload, so the owner hears a machine that is clearly working and finds a cabinet that never gets there.
- The temperature control — Second. On these models the control is a simple device with a sensing element, and when that element loses contact with its mount the control reads the wrong temperature and satisfies early.
- Condenser airflow and dust — Third. It is the cause that turns a machine which was coping into one which is not, and it shows up first in warm weather.
- Door seal and loading — Fourth. Overloading blocks the internal vents on cabinets of this size, and a seal that leaks adds moisture that ends up as frost.
- Sealed system — Last. It is the only item here that cannot be checked from outside the cabinet, and the only one that is licensed work.
Check in this order, and why
- Check the setting and what the cabinet actually holds — A thermometer left inside for a few hours separates a control fault from a cooling fault, and it costs nothing.
- Pull the cabinet out and look at the back and the clearance — Placement is checked here because it explains the seasonal version of this complaint better than anything inside.
- Listen at the freezer section for the internal fan — Placed after the free checks because it is the first step that needs a panel or a door switch held.
- Only then consider the compressor side — By this point three cheaper causes are eliminated, which is the whole reason for the order.
Before you open anything
Safety
Power off at the breaker or the plug before any cover comes off, and treat the compressor area as live until it is. Leave the door switch wired as it is: it cuts power to the internal fan for a reason, and defeating it puts a moving blade in reach of a hand. Anything on the sealed system is licensed work; do not open refrigerant tubing. A refrigerator holds food safely at 40 °F (4 °C) or below, and a freezer at 0 °F (−18 °C) or below. If the cabinet has been above that and you do not know for how long, the safe assumption is the worst one. Keep the door closed while you work — every opening costs cold you cannot put back quickly.
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 |
When to call a technician
Call when the cabinet has been checked from the outside and is still warm, or the moment the fault is on the sealed system. A technician will want to know three things you can collect for nothing: whether the compressor runs steadily, whether air moves at the vent, and whether there is ice at the back of the freezer section. On the ATMP refrigerator family those three answers usually decide the repair before anyone arrives.
The rest of this family’s pages
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
