The short answer
On the BUFR line, the most common reason a freezer is making an unusual noise is ice maker cycling — water valve, mould heater or ejector. Two of the three causes below are owner-checkable with no tools worth naming, and the last of them is a service call.
What you see on the BUFR line
- A rattle or buzz that comes and goes with the compressor — It starts when the unit starts and stops when it stops, which places it on something the compressor drives or touches.
- A whirring or chirping from inside the freezer — Noise that changes when you open the freezer door is coming from the evaporator fan, because the door switch stops that fan.
- A hum or drone from the back of the cabinet — The condenser fan and the compressor both live there, and both make a steady noise rather than an intermittent one.
- NEAR MISS — it is noisy and it has also stopped cooling — When cooling has failed as well, the cooling page is the one to read first; the noise is a symptom of it, not a separate fault.
Causes, most likely first on the BUFR line
- Ice maker cycling — water valve, mould heater or ejector — An ice maker fills, freezes, heats and ejects on a schedule of its own, and each of those steps has a sound. With the supply closed the fill valve buzzes without filling, which is the loudest and most alarming version. It is on the list because it is so often the whole answer, and because switching the ice maker off for a day tests it conclusively. The table below lists three models under one family key, so treat the page as covering the whole of that list unless a step below says otherwise.
- Evaporator fan blade striking ice or a worn fan bearing — A blade catching a frost ridge makes a chirp or a scrape that stops the moment the freezer door opens, because the door switch cuts that fan. It is the single most identifiable noise on a freezer.
- Compressor itself failing — A compressor in trouble knocks rather than rattles, or clicks on and off every few minutes as its overload trips. Neither sound improves with time and both are a service call. It is last because it is the least likely cause of a noise complaint and the only one on the list that is not cheap.
Check in this order, and why
- First: Switch the ice maker off for a day — If the noise stops with it, you have your source and nothing is actually broken. It comes first because it is the cheapest of the three to exclude and because everything below it is harder to read while it is unresolved.
- Second: Open the freezer door and listen for the noise to stop — If it stops with the door, it is the evaporator fan. If it continues, the noise is behind the cabinet.
- Third: Only after the rest: does it click on and off repeatedly? — Repeated tripping is a starting-circuit or compressor fault and needs a technician.
Before you open anything
Safety
Switch the unit off at the breaker before any panel comes off; a capacitor can stay charged afterwards. If you pull the cabinet out to reach the back, do it slowly and with help, because a loaded refrigerator is heavier than it looks and tips forward easily once it is off its feet. Never defeat the freezer door switch to watch the evaporator fan turn.
Models in the BUFR family
Reference| Model number | Family key |
|---|---|
| BUFR2715MG | beko:freezer:bufr |
| BUFR2715SSIM | beko:freezer:bufr |
| BUFR2715WH | beko:freezer:bufr |
When to call a technician
Call once the fans, the feet and the panels are all cleared, because what remains is the compressor and its mounts. Call at once if you hear a sharp knock or a grinding that rises with the motor, rather than letting it run to see whether it settles.
