The short answer
On the AMAW refrigerators the question is not how loud the noise is but what it runs with — the compressor, the fan, or a schedule. On these models a fan blade striking frost is the first thing this page would have you rule out. The checks below are all owner-side; what they buy you is a named cause before anyone is paid.
What you observe on these models
- A rattle from the back that stops when the compressor stops — The timing places it on the condenser side.
- A bang at intervals through the night — Long intervals and a single event point at a harvest, not a fault.
- A light plastic chatter from under the cabinet — Something loose is being shaken rather than something turning.
- NEAR MISS — water on the floor alongside the noise — A displaced drain pan makes both at once.
Causes, most likely first on this family
- Evaporator fan blade striking frost — This one is worth ranking high because the noise is a symptom of a defrost problem that will cost cooling next. Ranked first here: the commonest of the four on this family. The builds in this family differ only in trim, so it holds across the line.
- Condenser fan blade fouled or out of balance — A condenser fan that has picked up debris rattles from the back of the appliance and falls silent when the compressor stops. Second, because it produces almost the same complaint from a different part.
- Supply tubing pressed against the cabinet — The noise is worst where the tubing crosses a joist, so it can seem to come from somewhere other than the appliance. Third, because the two above account for most of what arrives with this complaint.
- Defrost timer or damper motor stepping — A timer that clicks constantly rather than occasionally is the exception, and that one is a fault. Last on this page: real, but uncommon on these cabinets.
- Body: Against the brand-wide order, installation causes move up and wear causes down: a family this short carries a narrow spread of ages, so how these cabinets were installed and loaded outranks how long they have run.
Check in this order, and why
- Hold the freezer door switch closed and listen: a fan striking ice ticks in time with its own rotation. — It leads: the ranking puts this cause first, so its check goes first too.
- Cut the power, take the rear cover off and turn the condenser fan by hand, feeling for roughness and for anything caught in the shroud. — It sits here because it rules a cause in rather than out, which saves a step later.
- Follow the water line from the valve to the cabinet and free it from anything it is pressed against. — Last, because it confirms what the checks above have already narrowed.
Power down first, then work
Safety
Unplug the appliance or switch off its breaker before removing any panel, because a capacitor can hold a charge after the power is off. Nothing on the sealed system is owner work; those lines are under pressure. Do not reach into a running fan to find a noise. Cut the power, turn the blade by hand, and refit the panel before powering up.
Models in the AMAW family
Reference| Model number | Family key |
|---|---|
| AMAW18S | amana:refrigerator:amaw |
| AMAW27S | amana:refrigerator:amaw |
| AMAW36S | amana:refrigerator:amaw |
When to call a technician
Owner work ends where the noise does not belong to the condenser side. A sound that only happens with the freezer door closed is evaporator-side, and reaching it means taking a panel off.
The other faults covered for this family
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