The short answer
On an A Premium MK refrigerator, water is appearing where it should not, and on a refrigerator almost every path leads back to the defrost drain rather than to the water line. A stepped capacity range on one mechanism: the larger cabinets ask the same compressor and the same fan to hold more volume, so they run a longer duty cycle for the same result. The models covered are in the variant table below, and the ranking is written for them rather than for every A Premium refrigerator sold.
What you observe
- A puddle on the floor at the front of the cabinet — Water that has cleared the door line has usually travelled along the floor of the liner, which means it entered the cabinet somewhere higher.
- Ice building in a slab on the freezer floor — Condensate freezing before it reaches the drain.
- Water down the inside of the rear wall — A drain that is clear but overwhelmed, or a door left ajar long enough to load the compartment with humid air.
- NEAR MISS — water only in the ice bucket, nowhere else — That is an ice-maker fill or dispenser-chute fault, and the drain ranking below will send you the wrong way.
Causes, most likely first on the MK models
- A water supply line, fitting or inlet valve weeping slowly — A supply leak is clean water and is usually at the back; ranked here because it is less common than the drain paths but does more damage.
- A larger cabinet on the same mechanism as a smaller one — Within this family the capacity steps up while the mechanism does not, so the largest model reaches its limits first and shows this fault soonest.
- A blocked or frozen defrost drain — Ranked first on almost every cabinet: every refrigerator makes condensate continuously and the drain is a narrow path that silt and food debris close over time.
- The ice maker fill tube or its chute icing and overflowing — Produces water at the freezer door line and in the bucket, and can imitate a drain fault from the front.
- A cracked liner or a failed seam behind the drawers — Ranked last because it is rare and because every cause above must be excluded before it is worth believing.
- Body: The MK key covers a small stepped range whose numbers track capacity, so the same mechanism sits in cabinets of different sizes. That construction is what moves the ranking on these models, and it is where this page departs from the brand-generic article. A Premium sells compact and replacement refrigeration into rental, dorm and hospitality use, so the unit is routinely moved, re-levelled and run in a warm room: the installation conditions outrank the parts. That is why the order below is what it is rather than a generic list of everything that can cause a water leak.
Check in this order, and why
- Do the paper test around the whole door seal, corners included — A seal that fails only at one corner still loads the drain continuously.
- Find the lowest wet point and work upward from it — Water travels down and forward, so the puddle tells you nothing until you know where the highest wet surface is.
- Note which capacity step your model is — The larger models in the family run closer to their limit, so what is a fault on one can be normal duty on another.
- Only then look for a cracked trough or liner behind the drawers — It needs the drawers and often the rear panel out, so it is last for access reasons as well as likelihood.
Before you open anything
Safety
Unplug the appliance or switch off its breaker before removing any panel — a capacitor can hold a charge after the power is off. Water on a floor beside an appliance on a live circuit is a shock hazard: dry the floor before you kneel on it, and never work on the unit standing in a puddle.
Models in the MK family
Reference| Model number | Family key |
|---|---|
| MK18 | a-premium:refrigerator:mk |
| MK25 | a-premium:refrigerator:mk |
| MK35 | a-premium:refrigerator:mk |
When to call a technician
Where your model is the largest capacity step in the family, give it longer to prove itself before calling: the same mechanism has more volume to pull down. Call straight away for any leak you can trace to the supply side: a slow weep behind a cabinet ruins a floor long before it announces itself.
Other faults covered for the MK models
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
