What this usually is on these models
Noise on the WTW line separates cleanly into sounds that follow the fan, sounds that follow the compressor and sounds that follow the cabinet. Match the rhythm of the noise to the fan or to the compressor first; that one observation splits the list in half, and that split does most of the diagnosis. The order below puts the fan blade catching on something first and a worn fan bearing last, and that order is the point of the page.
What you observe
- The unit walks slightly over time — It ends up a finger further from the wall each week, which is vibration finding a path out.
- 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.
- NEAR MISS - clicking every few minutes with no run — That is a start attempt failing rather than a mechanical noise, and it points at the supply or the start circuit.
Ranked causes for these models
- The fan blade catching on something — Ranked first on this line: a fan that touches a wire, a grille or a ridge of ice makes a hard repetitive noise that rises and falls with the fan rather than with the compressor. It is loud out of all proportion to the damage.
- The cabinet touching a wall or furniture — It ranks here because it is both a noise fault and a cooling fault, and pulling the unit clear addresses both.
- Loose fasteners, a cover or a grille — Then: the noise is usually intermittent, because the panel only buzzes at one point in the cycle when the frequency matches, and that intermittency is the clue.
- A worn fan bearing — Last, and the reason the order matters: a bearing that has dried out whines or rumbles continuously while the fan runs, and unlike a fouled blade it does not change when the obstruction is cleared, because there is none. It is the first of the genuinely mechanical causes.
What to check first, second, third
- 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.
- Pull the unit clear of everything it touches — Pull it a hand-width from the wall and from anything beside it, then listen. A noise that halves has been telling you about the contact, not the machine.
- Rest a hand on each panel while it runs — Check the fasteners around the machinery bay cover for one that has backed out.
Read this before you start
Safety
Switch off at the breaker or pull the plug before any panel is disturbed, because a capacitor can hold a charge after the power is off. Do not defeat a door switch to keep a fan running while you listen; there are safer ways to place a noise.
Models in the WTW family
Reference| Model number | Family key |
|---|---|
| WTW20 | alpicool:refrigerator:wtw |
| WTW25 | alpicool:refrigerator:wtw |
When to call a technician
Call when the noise is continuous rather than rhythmic and does not change with load, position or clearance: that combination points at a bearing or a mount, and both are behind a panel.
Other faults covered for 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.
