The short answer first
On a Martel refrigerator, a new noise is most often a compressor that has become loud or is straining rather than a rattle from a loose panel, grille or tray. Wear comes first, because a conventional platform in an older room has been running long enough for the moving parts to be the oldest thing on the list. All three checks below are owner work, and not one of them needs a part.
The symptoms, and the ones that mean something else
- A hum that has become louder over months — A change in a normal sound matters more than the sound itself.
- A loud noise for a minute or two, then silence for hours — That pattern belongs to a scheduled event rather than a continuous fault.
- The whole floor or worktop vibrates with it — A cabinet passing vibration into the structure is a levelling and contact problem, not a refrigeration one.
- NEAR MISS — clicking every few minutes and no cooling at all — Repeated clicking with no cooling is a start-relay pattern, and that belongs on the cooling page.
What goes wrong here, in order
- A compressor that has become loud or is straining — A compressor hums by design. A change in that hum — louder, rougher, or with a new vibration through the floor — means it is working harder than it was, usually because heat rejection has got worse. It leads because the sound has changed rather than appeared, and a changed hum is the machine telling you it is under load. They are found in older kitchens and utility rooms where the services around them are as old as the machine.
- A condenser fan catching on debris or wearing out — The fan at the base or the back draws air over the condenser. Dust, a fallen crumb tray or a stray bag will catch the blade and give a regular ticking or scraping in time with the fan. It sits here because the sound is rhythmic rather than constant, which separates it from everything electrical.
- A rattle from a loose panel, grille or tray — A drip tray sitting in its cradle, a base grille clipped on loosely or a rear panel that has worked free will buzz against the cabinet whenever the compressor runs, and go quiet the moment it stops. It is low only because the cabinet is rarely disturbed, not because it is hard to check.
What to check first, second, third
- Put a hand flat on the compressor housing while it runs — Rough vibration rather than a steady hum is the difference that matters. First, because it is the likeliest to end the job.
- Unplug it, pull the base grille and look at the fan blade — Debris on the blade or in its path is visible immediately. Second, once that is clean.
- Press a hand on each panel, the grille and the drip tray while it runs — If the noise stops under your hand, you have found it without a single tool. Third, and by now the answer is usually in hand.
The owner-side checks
- Clear the condenser and give the cabinet space, then listen again — A compressor rejecting heat properly is quieter than one that is not.
Tools: vacuumAbout 25 min
- Unplug the cabinet, clear the fan and the coil, refit the grille — Vacuum and a soft brush; check for a bag or a crumb tray that has fallen behind.
Tools: vacuum, soft brushAbout 25 min
- Reseat the drip tray, the base grille and any loose trim — Push each one home until it clips. Nothing here needs a tool.
About 10 min
- STOP — note when the noise happens and what it sounds like — A described noise with a pattern behind it is worth more to a technician than a guess at a part.
Safety first, and it is not a formality
Safety
Unplug the appliance or switch off its breaker before removing any panel. A capacitor can hold a charge after the power is off. Never put a hand near a fan to find a noise while the machine is live — it can restart on its own at any moment.
When to call a technician
The line is simple: anything you can reach with the cabinet unplugged and the grille off is yours, and anything behind the freezer's rear panel is not. A noise with warmth behind it should be treated as a cooling fault and called in promptly. On this brand parts are conventional and mostly generic, which keeps a repair sensible.
Nearest pages of this class
What is not on this page
This page is written for the appliance class, not for one Martel model line. Where a family- or model-specific page exists it is the better answer and it is linked below — go there first if your model is named. Not here: fan part numbers, shroud layouts, the compressor variant fitted, or teardown order.
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
