The short answer for this line
On MK units the useful question is not how loud the noise is but what it follows. Match the rhythm of the noise to the fan or to the compressor first; that one observation splits the list in half, which is why the order below differs from the brand-generic one.
What this looks like on these models
- Gurgling or trickling after the compressor stops — Liquid settling in the pipework; this is an ordinary sound and not a fault on its own.
- Ticking in time with something turning — A hard, even tick with a fixed interval, which is the signature of a blade brushing something.
- The noise is far worse in one room than another — The same unit, the same load, a different surface and a different amount of background sound.
- NEAR MISS - no noise at all and nothing is cold — A silent unit is a supply or a start fault, not a noise fault, and it belongs on the cooling page rather than here.
Causes in likelihood order on this platform
- The fan blade catching on something — First here, and by a wide margin: this is the noise most often described as ticking, buzzing or a card in bicycle spokes, and it is one of the few that is diagnosable purely by rhythm.
- Loose fasteners, a cover or a grille — Second on this line: a screw that has backed out, a loose rear cover or a grille that has lost a clip buzzes only while the compressor runs, which makes it sound like a motor fault. It is not.
- Contents and baskets vibrating — It deserves a place in the ranking rather than a footnote: it is the single commonest explanation for a new noise in a unit that has not changed otherwise.
- A worn fan bearing — Last on the list, and the only one here that is not owner work: it develops rather than appearing, gets worse in the cold, and is often quieter for a while after a run, which is how it is distinguished from a foul.
Check in this order, and why
- Match the rhythm of the noise to the fan — With the unit isolated, look for ice or a displaced wire near the blade path before touching anything.
- Rest a hand on each panel while it runs — Press a flat hand against each panel and the rear cover in turn. A noise that stops under your hand is a panel, and tightening or padding it is the repair.
- Run the unit empty for a minute — Refill in stages and listen after each. The item that brings the noise back is the one to separate from the wall or the rail.
Safety first
Safety
Isolate the unit at the plug or the breaker before any cover comes off - a capacitor can hold a charge after the power is off. Do not hold a panel against the case with a hand while the compressor runs; use packing and let go of it.
Models in the MK family
Reference| Model number | Family key |
|---|---|
| MK18 | alpicool:refrigerator:mk |
| MK25 | alpicool:refrigerator:mk |
| MK35 | alpicool:refrigerator:mk |
The line between a fix and a call
The line here is whether the noise survives an empty cabinet on a level surface with a hand-width of clearance. If it does, it is mechanical and it needs the bay opening, which is service work on this line.
The rest of this line
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
