The short answer
On a Feilong Home Electrical Group Co Ltd refrigerator that is making an unfamiliar noise, the cause to suspect first is compressor mounts and running hum, with cabinet out of level or a foot not carrying weight behind it. The ranking below is written for the static cold-plate build, which you can confirm in seconds: open the door and look at the back wall: bare metal with visible tubing and no grille means there is no evaporator fan at all. Everything in front of the freezer rear panel — levelling, clearing, seating the pan — is owner work; what sits behind that panel is not.
What you observe
- A buzz or rattle that starts and stops with the cooling cycle — It tracks the compressor exactly, which puts it in the machine compartment.
- A clatter from the freezer at intervals with no pattern — Ice dropping into the bin, which surprises people most at night.
- A whirring or ticking that stops when the door is opened — The door switch cuts the cabinet fan, so this places the noise inside the food compartment.
- A drone that carries through the floor — Worse on hard floors and in a quiet room, and it changes if the appliance is moved.
- NEAR MISS — the noise comes with a cabinet that is no longer cold — Noise plus warmth is a cooling fault, not a noise fault, and the cooling page is the right one.
Causes, most likely first on this brand
- Compressor mounts and running hum — Ranked first here: the compressor is a sealed motor on rubber mounts, and mounts harden with age. A hum that used to be inaudible becomes a drone that carries through the floor when the mounts stop absorbing it, and the appliance sounds worse in a hard-floored room than the same unit does on carpet.
- Cabinet out of level or a foot not carrying weight — Second: a tall cabinet with a running motor inside it is a tuning fork if one corner is not carrying load.
- Ice maker fill, harvest and drop — Third: switching the ice maker off for a day settles the question completely, which makes this the cheapest cause on the list to confirm or eliminate.
Check in this order, and why
- Put a hand flat on the cabinet side while it runs — A drone you can feel as much as hear points at mounts and floor coupling rather than a part.
- Press each front corner in turn — Any rocking at all is worth correcting before anything is opened, because it is free.
- Switch the ice maker off for a day — If the noise disappears with it, the cycle was the source and the appliance is healthy.
What an owner can safely check
- Press each front corner and adjust the feet until nothing rocks — Costs nothing, needs no tools on most cabinets and removes the whole vibration class.
About 10 min
- Check the tubing at the back for a point of contact with the cabinet — Easing a tube off the panel by hand ends a buzz that no part replacement would have fixed.
About 10 min
- Switch the ice maker off for a day and listen again — Removes fill, harvest and drop noise from the picture in one move.
About 5 min
- STOP HERE if the noise is behind the freezer rear panel — That panel carries the fan and the defrost heater, and the work behind it is not owner work.
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. Leave the door switch wired exactly as it is: it cuts power to the cabinet fan for a reason, and defeating it puts a spinning blade in a space your hand goes into. Anything on the sealed system is licensed work, so if you find oil at the tubing, stop there. Get help before moving the cabinet: it is heavier than it looks and it will pivot on its front feet.
When to call a technician
Once you have excluded rocking, debris and the pan and the noise persists through a whole cooling cycle, it is a service call. It is also a service call the moment the sound changes character — a hum that becomes a knock, or a whirr that becomes a grind — because a changing noise is a part moving towards failure rather than a part that is simply loud.
Nearest pages of this class
What this page does not cover
Written for Feilong Home Electrical Group Co Ltd refrigerators as a class, not for one family. No family-specific page for this brand and appliance is published here yet; where one exists for your unit it takes precedence over this page. Wiring colours, torque figures and part numbers are deliberately not here: they differ by family.
