The short answer
On the AZF freezer this symptom is usually how the cabinet stands, because a large box rocking on one foot turns normal running vibration into a noise that fills the room. The numeric core of these model numbers separates the sizes in the AZF family; the diagnostic order below is common to all of them.
What you observe
- A grinding that has got worse over months — The one noise on this list that tends to end in a failed part.
- A hum that is louder in the next room than beside the cabinet — Structure-borne vibration, which is mounts and levelling rather than a failing part.
- A whirr or rattle that rises and falls with the compressor — At the condenser end, if this cabinet has a fan there at all.
- A hard ticking that stops when the cabinet is opened — An internal fan meeting ice, which only happens on a frost-free cabinet.
- NEAR MISS — the noise comes with a cabinet that is no longer holding temperature — Noise plus warming is a cooling fault, and it is diagnosed on the cooling page rather than here.
Causes, most likely first on the AZF family
- Cabinet not level or resonating against a wall or floor — First on this family. A single short foot, a flexing floor or a cabinet touching a wall at one point converts a hum into a buzz that comes and goes with the compressor.
- Ice shifting, or the cabinet contents settling — Second on these models. Ice sheets release and packages settle as the cabinet cycles, and the noise arrives at random with nobody near the appliance.
- Lid hinge, counterbalance or a loose panel — Third. A hinge with a worn pin or a kick panel missing a screw buzzes only at certain points in the cycle, which is what makes it seem intermittent.
- Thermostat, relay or defrost timer clicking — Last of the four, and the one to reach for only when the others are clean. Repeated stuttering clicks are not, and that version belongs with the cooling faults rather than here.
- Body: A brand-generic article on this symptom starts with the compressor mounts. Here the cabinet not level or resonating against a wall or floor moves ahead of it, because the models in the table share the same construction, so what is true of one is true across the family.
Check in this order, and why
- Rock the cabinet at each corner and check the gap behind it — Any rocking, or any contact with the wall, is worth correcting before anything is opened.
- Note whether the noise is a single crack at random rather than a repeating mechanical sound — Random single cracks with no pattern are contents and ice, not machinery.
- With the machine running, press a hand firmly on the lid and on each panel — A noise that changes when you press somewhere has told you exactly where it comes from.
Before you open anything
Safety
Unplug the appliance or switch off its breaker before removing any panel or reaching into a fan area — a capacitor can hold a charge after the power is off and a fan can start without warning. Never lever or bend refrigerant tubing: it is under pressure and is handled under licence. A loaded chest cabinet is extremely heavy, so empty it before moving it and get help.
Models in the AZF family
Reference| Model number | Family key |
|---|---|
| AZF33X16D* | amana:freezer:azf |
| AZF33X18D* | amana:freezer:azf |
| AZF33X20D* | amana:freezer:azf |
When to call a technician
Call when the noise survives levelling, panel pressing and a look for debris, because the rest is inside the cabinet. Call promptly for grinding or any noise that is getting worse week by week.
Other faults covered for the AZF family
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
