The short answer for these models
On ATMM cabinets a leak is usually the cooling system doing its job and the drainage failing to keep up. This family is a short list of model numbers rather than a whole range. Water inside the cabinet and water on the floor have different causes, so establish which you have before anything else.
The observations that separate this fault from its neighbours
- Damp only in the bottom drawer, nowhere else — Condensation collecting at the coldest, least ventilated point in the cabinet rather than a drain fault.
- Water appears a day after a manual defrost — Melt water that had nowhere to go: the drain was blocked before the defrost and the defrost simply made the evidence.
- Water appears only when the ice maker runs — The fill tube or its connection, not the drain. Timing is the evidence here.
- Water on the floor at the back — Points at the back of the machine: the drain tube exit, the evaporation tray, or a supply fitting on a plumbed cabinet.
- NEAR MISS — the cabinet is also warm and the freezer is soft — Then the water is melting food, and this is a cooling failure. Use the cooling page for this family first.
Causes, most likely first on the ATMM line
- Supply line, valve and fittings — First on the ATMM refrigerator family whenever the cabinet is plumbed. Fittings loosen when a machine is pulled out for cleaning, lines kink behind it when it is pushed back, and a compression joint that has been disturbed once will weep. The leak is steady, not tied to any cycle, and that is how you recognise it.
- The path from the valve to the mould — Second. Water that leaks at the fill tube appears only while the maker is filling, which makes it intermittent and hard to catch. If the puddle matches the ice cycle, this is where to look.
- Defrost drain — Third. The standard cause of interior water, kept here because on a plumbed cabinet the supply side has to be excluded first — otherwise a clear drain gets blamed for a wet floor it did not cause.
- Condensation from door and seal — Fourth. It is a contributing cause on almost every leak and the primary cause on few of them.
- Drain pan and levelling — Last. Worth a look when the machine has recently been moved, and rarely otherwise.
What to check first, and why that order
- Dry everything and put paper down — A dry start with paper under the front and the back turns an argument about where the water comes from into an observation.
- Look at the inner walls and the door frame — Beads and damp mean condensation; a puddle with dry walls means drainage or supply.
- Test the door seal along its whole length — Close the door on a sheet of paper and pull at several points. Any point with no grip is a corner that is feeding moisture in.
- Flush the drain even if the seal was the fault — The extra moisture a leaking seal makes has already been through the drain, so it is usually part-blocked by the time the leak is noticed.
- Check the back only if the paper there is wet — Keeps the plumbing work for the case that actually calls for it.
Before any panel comes off
Safety
Power off first — a capacitor can hold a charge after the power is off — and water off before any connection is opened. Close the water shut-off before a fitting is disturbed. Mop the floor before moving the machine, because a loaded refrigerator on a wet floor moves further than expected and these cabinets are heavy enough to need two people. If the leak came with a warm cabinet, judge the food by temperature rather than by the puddle: 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 ATMM family
Reference| Model number | Family key |
|---|---|
| ATMM071ADB | arctic-king:refrigerator:atmm |
| ATMM071ADS | arctic-king:refrigerator:atmm |
| ATMM071ADW | arctic-king:refrigerator:atmm |
When to call a technician
Call if the leak is at a supply fitting and does not stop when the valve is closed and reopened, or if water has reached the floor structure. On the ATMM refrigerator family clearing a drain, adjusting feet and reseating a pan are owner work; anything that needs the evaporator cover off, or a plumbing joint remade, is not. Call the same day for a leak behind the cabinet, because that one is quietly expensive.
Other problems covered for this family
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