The short answer
The usual answer on this unit is the evaporator fan blade catching ice, or its bearing worn, with a cabinet out of level or touching something second. Where you hear it from matters more than how loud it is. Nearly all of this is owner work: it is listening, levelling and clearing, not dismantling.
What you are looking at
- A hard knock or clunk that repeats every few minutes — Something starting and stopping under load.
- NEAR MISS: a loud crack once or twice a day — Plastic liners expand and contract with the defrost cycle. That is normal and needs nothing.
Causes, most likely first on this unit
- The evaporator fan blade catching ice, or its bearing worn — The fan behind the freezer rear panel runs almost continuously. Ice grown onto the shroud gives a rhythmic scrape; a dry bearing gives a chirp that rises as the unit runs. Ranked first on this unit: it runs more hours than anything else in the cabinet, and it is the only motor whose noise changes when you open a door, which counts for more here because this is a nameplate with a large installed base, which means most units still working are well past their first decade and fail by wear rather than by design.
- A cabinet out of level or touching something — A fridge standing on three feet, or with a corner against a wall unit, turns the normal compressor hum into a buzz you can hear in the next room. Second: it is the cause with no fault in it at all, which is why it is worth ruling out before spending anything.
- A failing compressor knocking under load — Worn internal mounts give a deep knock as the compressor starts, and a rising rumble as it runs. Last on purpose: it is the least likely cause and the most expensive, so every cheap cause above it is ruled out first on purpose.
The order to check in
- Open the freezer and press the door switch in, then listen — A noise that starts and stops with the switch is on that fan, and nothing else is.
- Press down on each corner in turn and listen for the noise to change — A noise that changes when you lean on the cabinet is a mounting noise.
- Only after the fans, the pan and the levelling are all clean — At that point the noise is in the sealed system and it is not an owner job.
What an owner can safely check
- Hold the freezer door switch in and listen at the rear panel — If the noise follows the switch, you have located it without removing anything.
About 5 min
- Check the unit is level and that no corner touches a cabinet, a wall or a pipe — Adjust the feet until it sits firm on all four.
Tools: a spirit level, a spannerAbout 20 min
- STOP AT THIS POINT if the fault is on the sealed system — Refrigerant is licensed work and the tools for it are not owner tools.
Read this before you touch it
Safety
Pull the plug or drop the breaker before you take off a panel. There is a capacitor in this appliance that stays charged after the power is gone, and the compressor terminals are live whenever it is not. Do not rewire or bypass a door switch to keep a fan running while you look. Refrigerant work is licensed, so the sealed system is a technician's job from the first step to the last.
Where an owner check ends
Call once the fans, the pan and the levelling are all ruled out and the noise is still there, because what is left is the sealed system or the start circuit. Call sooner if the compressor tries to start and gives up, if the noise comes with a warm cabinet, or if the unit trips a breaker.
Related pages for this unit
What is deliberately not on this page
This page covers the West Bend refrigerator as a class, not one family or model line. Where a family- or model-specific page exists it is linked here. Deliberately not here: fan part numbers, compressor mount specifications and any panel removal sequence, all of which differ by family and belong on the page for that family.
Links: - [Why a West Bend refrigerator runs but will not get cold](/blog/west-bend-refrigerator-cooling-failure) - [Water under a West Bend refrigerator, and where it comes from](/blog/west-bend-refrigerator-water-leak) - [A WANAI refrigerator that buzzes, rattles or knocks](/blog/wanai-refrigerator-abnormal-noise)
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
