The short answer
A noisy under-counter refrigerator is usually telling you one thing: the cabinet is touching the surrounding cabinetry. Next on the list: a rear panel, drip tray or pipe is buzzing against the shell. Almost everything here is housekeeping rather than a failing compressor; the one service job sits at the bottom and sounds quite different.
What you observe
- A new sound the cabinet did not make when it was installed — What matters is whether it tracks the compressor, a fan, or your hand.
- The noise is louder in the next room than in the kitchen — Structure-borne noise travels better than airborne noise.
- A buzz that stops when you lean on the cabinet — Only contact noise responds to pressure.
- A whirr from the machine compartment that rises as it runs — Fan noise tracks the run cycle exactly, which narrows it fast.
- NEAR MISS — a gurgle or a soft crackle after the compressor stops — Refrigerant settling in the liner. Normal, and no page can fix it.
Causes, most likely first on this unit
- The cabinet is touching the surrounding cabinetry — First on a flush-installed machine, because a flush cabinet cut-out under a worktop leaves almost no gap on any side. A cabinet that grows warm expands into the cut-out, its side panel comes to rest against a carcass, and the whole run of cabinetry becomes a sounding board.
- A rear panel, drip tray or pipe is buzzing against the shell — Ranked here because contact noise is always worth eliminating before a component is blamed for it.
- The condenser fan is fouled or its bearing has dried out — Ranked here because it is the fan with the hardest life in the machine and the noise it makes is unmistakable once you know it.
- The compressor mounting grommets have perished — Last.
Check in this order, and why
- Slide a card down each side between cabinet and carcass — Where the card will not pass, the cabinet is touching.
- Press each panel in turn while the machine is running — A buzz that stops under your hand is a contact noise, nothing more.
- Isolate the cabinet and spin the condenser fan by hand — A gritty or stiff blade is a bearing; a loose one is a mount.
- Listen for a low rumble that starts and stops with the compressor — A boom that tracks the run cycle is a mount, not a bearing.
What an owner can safely check
- Work out whether the noise tracks the compressor, a fan, or your hand — Three sources, three fixes, and nothing else helps until you know which.
About 10 min
- Slide a thin card down each side and along the top — Any point it will not pass is a contact to shim clear.
Tools: cardAbout 15 min
- Press each outer panel while it runs and note which silences it — Then isolate the cabinet and tighten or pad that panel.
About 15 min
- STOP HERE if the noise survives every check above — A bearing or a compressor mount means the assembly comes out. That is a service call.
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. A built-in slides under its own weight and traps fingers against the carcass. Support it as it comes out, and take the door off only with a second pair of hands.
When to call a technician
Call once the cabinet is level, the panels are secure and nothing loose is touching it, and a whirr, squeal or rumble is still there. That means a bearing or a mounting, and both mean the assembly comes out. Call urgently if the noise arrived with poor cooling — that is not a noise complaint at all. Call immediately if you smell burning or hear a scraping metal-on-metal sound.
Nearest pages of this class
What this page does not cover
This page is written for the brand and the cabinet class, not for one family or model line. Where a family- or model-specific page exists for your unit, it is the more specific answer and it is where to start. Deliberately absent: cut-out dimensions, grille and hinge identifiers and torque figures, which differ between the under-counter and tall built-in families.
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
