The short answer
Noise complaints on the MCR family divide into the sounds every cooling appliance makes and the two or three that mean something has moved, worn or is touching what it should not. A cooling appliance is never truly silent, so the question is never whether it makes a noise but whether the noise is new, and whether it changes when the compressor stops.
What you observe on these models
- A buzz that is loudest at the back corner — Tubing that has been pushed against the cabinet skin - often when the unit was last moved - transmits everything the compressor does straight into the panel.
- A deep hum that has got noticeably louder — A hum that has grown rather than appeared usually means the machine is running more, which is a cooling complaint wearing a noise costume.
- A rhythmic ticking or clicking from the back — Regular, slow ticking is usually expansion and contraction in the tubing. Fast clicking in short bursts, followed by silence, is a different matter entirely.
- NEAR MISS - the noise arrived with water on the floor — Noise plus water usually means something has shifted or a drain has blocked, and the water leak page for this family is the better starting point.
Causes, most likely first on this platform
- A unit that is not sitting square — A cooling appliance vibrates constantly and quietly, and it only becomes audible when something is there to amplify it. A foot barely touching, a cabinet resting against a wall or a floor that flexes turns an inaudible machine into a loud one. With a single catalogued model there is no build variation to chase, so where the machine stands accounts for nearly all of the difference between a quiet one and a loud one.
- A pipe resting where it should be clear — Second on this platform. A line resting against the cabinet is easy to miss and easy to fix, and it accounts for a good share of the buzzes that appear immediately after a unit has been moved.
- A fan fouling on ice or a wire — Third here. Where a model has a fan, ice or a stray wire against the blade is worth checking, though it needs a panel off and so it sits below the free checks.
- The rubber the compressor sits on — Fourth. Hardened mounts produce a knock at each end of the cycle and a general increase in transmitted noise. It is an age fault rather than a breakage, and it is rarely urgent.
- A compressor struggling to start — Last. Last, and the only entry here that is urgent: repeated clicking with no cooling means the compressor is not starting, and continuing to let it try is not free.
Check in this order, and why
- Pull it out and look at what is touching — Check the back panel against the wall, the sides against the cabinetry and the pipework against the shell. Half of these complaints end here, with nothing broken. With one catalogued entry behind this page, whatever you find here is the answer for every owner of the model.
- Time the sound against the cycle — Note whether it starts with the compressor, runs continuously, or comes in short bursts followed by silence. Those three patterns point at three different causes.
- Wait for the compressor to stop, then listen — This one test splits the list in half. Whatever is still audible after the machine has gone quiet is not the machine, and whatever vanishes with it is being driven by it.
Before you open anything
Safety
Power the machine down at the plug or the breaker before you go behind a panel, and give the capacitor a moment. Do not chip ice away from a fan blade with anything metal - the tubing behind it punctures easily - and do not defeat an interlock to keep something spinning while you look at it.
Models in the MCR family
Reference| Model number | Family key |
|---|---|
| MCR74V** | avanti:refrigerator:mcr |
When to call a technician
If the noise is steady, tracks the compressor and survives every free check, it is worth a visit rather than a parts order. Call immediately instead of testing further where there is a hiss and a smell, a tripping breaker, or clicking with no cold, and leave the cabinet isolated until someone has looked at it.
Other faults covered for these models
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
