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The single most common cause of this fault is a defrost drain frozen shut. Melt water that cannot reach the drip tray backs up, finds the lowest point in the cabinet, and eventually runs out over the door sill. On the ARTM line specifically, the platform's layout is what decides which of those gets checked first.
What an owner actually sees on a ARTM unit
- Water running down the inside of the fresh-food compartment back wall — Condensate that is missing the drain trough, either because the trough is misaligned or because it is full. Read this one against the ARTM models listed below.
- A sour smell from under the crispers — Water that has stood for a while, which dates the leak as older than the puddle you just found.
- The leak started after a big defrost or a power cut — A larger-than-usual melt load that overwhelmed a drain which was already marginal.
- NEAR MISS: the cabinet is also warm — Then the leak is a symptom of a cooling fault, and the cooling page is the right one to read first.
The ranking on the ARTM line
- A defrost drain blocked with ice or debris — Ranked first by a wide margin. Every automatic-defrost refrigerator makes melt water on a cycle, and the only path out is a narrow drain that clogs with food fragments and then freezes solid. On a ARTM unit this is still the first thing to eliminate.
- A door gasket that is letting warm air condense at the seal — Less a leak than a symptom, but it puts real water on the floor in a humid kitchen and it is cheap to rule out.
- A dispenser line or reservoir weeping inside the door — It shows as water in the door shelves and on the floor at the hinge side rather than centrally.
- A cracked water reservoir or dispenser line inside the door — Last, because it is the least common. It shows as water in the door shelves rather than at the back.
What to check first, second, third
- Find where the water actually is before touching anything — Inside under the crispers, behind the unit, or at the door sill — three locations, three different faults, and this single observation picks the branch. The ARTM layout is the reason it comes first here.
- Run a hand along the supply line and its fittings — Damp at a fitting is the answer; damp along the tube is a split, and both are at the back.
- Check the gasket for damp along its lower edge — Condensation at a failing seal is a real source of floor water in a humid room.
What to do before you start
Safety
Isolate the appliance at the plug or the breaker, shut the water off, and mop before starting. A refrigerator is heavy and awkward: empty it before moving it, and walk it out rather than dragging it, because dragging kinks the very line you are inspecting.
Models in the ARTM family
Reference| Model number | Family key |
|---|---|
| ARTM142** | aviva:refrigerator:artm |
When to stop and call
The owner side ends at the rear panel and at any fitting needing a tool to hold it still. Call then, and call urgently if the floor covering under the appliance has started to lift.
Related symptoms for the ARTM line
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
