The short answer
A new rattle, buzz or knock from the FFBM family is far more often about where the cabinet stands than about anything inside it, and the checks that prove that are free. The complaint that brings these units in is almost always a rattle, a buzz or a hum that has appeared recently, and almost all of it traces to contact rather than to a failing part.
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 scraping or chirping that changes with the door open — Where a model has a fan behind a panel, ice or a stray wire touching the blade gives a sound that changes as soon as the airflow does.
- 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 sound is a hiss and there is a smell — Stop there. Isolate the cabinet and call a technician rather than working through this page.
Causes, most likely first on this platform
- Tubing touching the cabinet — The pipework at the back is routed with clearance on purpose. Anything that presses a line onto the shell - a move, a shove into a tight recess, a bracket - hands the compressor a direct route into a large flat panel, which is what a loudspeaker is. Several distinct bases means several depths, and the deeper cabinet pushed into a tight space is the one whose pipework ends up resting on something.
- The fan, where the model has one — Second on this platform. 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.
- Contact with the floor, the wall or the cabinetry — Third here. Levelling and contact stay on the list to the end, because they are free to rule out and because they explain sounds that appear after a move with nothing having failed at all.
- Mounts that have stopped absorbing anything — 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.
- The one cause on this list that is not a nuisance — Last. Last, and the only entry here that is urgent: repeated clicking without cooling means the compressor is not starting, and every further attempt costs it something.
Check in this order, and why
- 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. The 9 entries below sit on 6 different bases, so confirm your own code before carrying a neighbour's result across.
- Press a hand flat on the top and the side — If the sound drops while you press, you are listening to a panel resonating rather than a part failing, and the fix is damping or clearance rather than parts.
- Take the loading out of the equation — Bottles touching each other and a loose shelf make noises that sound mechanical from the next room. Empty the shelves once before assuming anything about the machine.
Before you open anything
Safety
Unplug the appliance or switch off its breaker before removing any panel, and remember that a capacitor can hold a charge after the power is off. Never reach into a fan opening to stop a blade or to feel for an obstruction while the unit is live, and never wedge the door switch to keep a fan running so you can listen to it.
Models in the FFBM family
Reference| Model number | Family key |
|---|---|
| FFBM102D0W | avanti:refrigerator:ffbm |
| FFBM102D3S | avanti:refrigerator:ffbm |
| FFBM10H0W | avanti:refrigerator:ffbm |
| FFBM10H3S | avanti:refrigerator:ffbm |
| FFBM45136SS | avanti:refrigerator:ffbm |
| FFBM920WH | avanti:refrigerator:ffbm |
| FFBM922PH | avanti:refrigerator:ffbm |
| FFBM92H0W | avanti:refrigerator:ffbm |
| FFBM92H3S | avanti:refrigerator:ffbm |
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.
