The short answer
A static-cooled cabinet has no fans at all, which removes most of the usual suspects and moves the cabinet itself to the top of the list. Ranked first on this platform: Something the cabinet is touching. The checks below follow that ranking, and the first of them need no tools and no panel removed.
What you observe
- The noise is louder standing beside the cabinet than in front of it — Sound that comes from the side is coming from the contact, not the compressor.
- The noise changes or stops if you lean on the cabinet — A noise that responds to a hand on the case is a mounting noise, not a mechanical one.
- The noise is intermittent and does not follow the compressor cycle exactly — Anything that does not follow the cycle probably is not driven by the machine.
- NEAR MISS — the noise is a gurgle or a trickle a few minutes after the unit stops — Refrigerant settling and defrost water running are normal sounds on almost every cabinet, and no repair will remove them.
Causes, most likely first on this platform
- Something the cabinet is touching — A cabinet that touches the wall, a worktop edge, a pipe or the next unit along transmits vibration straight into it, and the surface it touches is usually louder than the appliance. It ranks first on this platform because with no evaporator fan and no condenser fan in the machine, every noise it can make comes from the compressor, the tubing or something touching the shell — and contact is by far the commonest of the three.
- The cabinet is not standing solidly on its feet — A cabinet resting on three of its four feet turns every normal internal vibration into a rocking, buzzing or drumming that seems to come from inside the machine. It ranks second here because static cooling means cold falls and warm rises inside the cabinet with nothing to move it, so temperature is a function of where in the box you measure and how the shelves are packed.
- Bottles and containers inside the cabinet — A cabinet running normally vibrates enough to walk two bottles into each other on a wire shelf. It comes third in the order — a genuine cause here, behind the ones above it on frequency alone.
Check in this order, and why
- Ease the cabinet forward a couple of inches and listen again — If the noise leaves with the contact, the diagnosis is finished. It leads because it tests the top-ranked cause.
- Push the top corners of the cabinet diagonally and watch for a rock — It takes seconds and it identifies the most common cause on almost every platform. Tests the second-ranked cause.
- Empty the door shelves and the top shelf and run the cabinet for an hour — Cheap, quick, and eliminates the cause nobody wants to have found. Tests the third-ranked cause.
What an owner can safely check
- Pull the cabinet clear of every surface it touches and re-listen — Include the water line and the cord — a coil of either resting against the back panel buzzes convincingly.
About 15 min
- Level the cabinet on its adjustable feet until it does not rock at all — Work diagonally, and set it with a very slight backward tilt so the door swings closed.
Tools: spirit levelAbout 20 min
- STOP here if the next step needs a meter on live terminals or a sealed panel off — That is where an owner check ends. Write down what each check showed and hand it to the technician.
Before you go looking for the source
Safety
Unplug the appliance or switch off its breaker before removing any panel or reaching behind a fan — a capacitor can hold a charge after the power is off, and a fan blade that has stopped because you opened a door will start again without warning.
When to call a technician
Call once the noise has been traced to something behind a sealed panel, or once it is clearly coming from the compressor itself rather than from anything touching it.
Nearest pages of this class
What this page does not cover
This page is written for the Mora refrigerator as a class, not for one family or one model line. Where a family- or model-specific page exists for your unit, that page is the more specific answer and the one to read first. Deliberately not here: part numbers, wiring colours and disassembly order, which differ by family.
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
