The short answer for Artt ATTM
The Artt ATTM family answers this differently from the brand as a whole: here compressor mounts and tubing contact ranks ahead of the compressor itself, or a start component, because of how these models are built and how they are reached. Of the four causes ranked below, three are owner work and the remainder need a technician.
What you observe on these models
- A vibration that travels into the floor or the adjoining cabinet — Usually a levelling or clearance problem rather than a component fault.
- A pulsing hum that comes through the worktop rather than the air — Structural transmission, which points at contact and levelling rather than at a part.
- A chirp, squeal or warble from inside the freezer
- NEAR MISS — the noise is the ice maker filling and dropping a harvest — A buzz then a clatter on a regular schedule is an ice maker doing its job. Switch it off for a day; if the noise stops, nothing is wrong.
Causes, most likely first on Artt ATTM
- Compressor mounts and tubing contact — Rubber mounts harden with age and the suction line works its way against the cabinet, turning every start into a knock. Placed at this point because the mounts are consumable and the tubing moves every time the compressor loads, so contact develops on a cabinet that has never been touched.
- The evaporator fan fouling on ice or a failing bearing — It is here because it is the only noise source in the cabinet that changes when the freezer door opens, which makes it the fastest thing to confirm or dismiss.
- The condenser fan catching debris or running out of balance — Ranked here because it draws floor debris straight into the blade path, so a rattle that tracks the cooling cycle usually starts here.
- The compressor itself, or a start component — A loud metallic knock under load, a hard buzz that ends in a click a few seconds later, or a rising growl that never settles. It sits at this point because a start relay that chatters gives a repeating click-buzz on a cabinet that still gets cold, which is a component fault rather than a compressor failure.
Check in this order, and why
- With the power off, press the tubing at the back and feel for a hard contact point — Tubing touching the shell, or a compressor sitting hard on a collapsed mount, is visible and correctable without opening the sealed system.
- Open the freezer door and listen for the noise to change — A noise that stops the moment the door switch releases is inside the freezer compartment. One that carries on is not, and that halves the list.
- Why this order and not another — It follows the ranking, not a generic checklist: on Artt ATTM the first check separates compressor mounts and tubing contact from the evaporator fan fouling on ice or a failing bearing, and access decides the rest — what this family puts behind which panel is why the cheap check comes first.
Power off first, and what not to defeat
Safety
Unplug the appliance or switch off its breaker before removing any panel. A capacitor can hold a charge after the power is off. On a cold cabinet the parts that bite are behind the lower rear access panel, where the start relay and the run capacitor live, and behind the interior rear panel, where a defrost heater sits in the airflow.
Models in the ATTM family
Reference| Model number | Family key |
|---|---|
| ATTM18** | artt:refrigerator:attm |
| ATTM18**2 | artt:refrigerator:attm |
When to call a technician
Call when the noise is metallic and under load, when it has arrived alongside a loss of cooling, or when you have levelled the cabinet, cleared the rear fan and tested with the ice maker off and it is unchanged.
Other problems covered for Artt ATTM
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
