The short answer for the NPWHI models
On the Alcove NPWHI refrigerator models, a noise or a vibration that is new leads with tubing touching the cabinet or another line rather than with the cause the brand-generic article opens on. The spine for the NPWHI family lists a single model code, so there is no variant spread to account for here.
What you observe on these models
- A rattle that appears for a minute and then stops — Something loose is being driven at one particular speed or at one moment in the cycle.
- Gurgling or trickling after the unit stops — Refrigerant settling. Normal, and often the first sound noticed in a newly quiet room.
- A buzz or a hum that starts with the compressor — It comes and goes with the running cycle rather than being constant.
- NEAR MISS — it is noisy and it has also stopped getting cold — Two symptoms together point at the cooling page rather than at this one.
Causes, most likely first on the NPWHI family
- Tubing touching the cabinet or another line — Two lines touching each other transmit every vibration between them and turn a hum into a rattle. Ranked first here.
- A cabinet that is not sitting square on its feet — An unlevel cabinet also lets its doors hang wrong, so a rock at the feet often arrives with a second complaint attached. Second.
- The compressor itself — A knocking or labouring noise from the compressor, or a relay clicking without a start. Last, and that is the point of the order.
- Body: The cause that moves up on these models is tubing touching the cabinet or another line; what moves down to make room for it is the condenser fan or its shroud, which is where the brand-generic article for this symptom opens.
Check in this order, and why
- Push a top corner and see whether the cabinet rocks — First: A rock means the feet, and the feet are adjustable without a single part being bought.
- Work out whether the sound tracks the compressor or runs constantly — Second: A noise that stops when the compressor stops is at the warm end; one that does not is elsewhere.
- Clear the top, the sides and the back, then listen again — Third: Half of these noises are objects, and objects are free to remove.
Before you open anything
Safety
Power off at the plug or the breaker before anything is opened. A capacitor keeps its charge after the switch, and the fan behind the rear panel can start on its own. The sealed refrigerant side is licensed work rather than owner work. Deal with the food first: a refrigerator holds food safely at 40 degrees Fahrenheit, 4 degrees Celsius, or below, and a freezer at 0 degrees Fahrenheit.
Models covered by the NPWHI family
Reference| Model number | Family key |
|---|---|
| NPWHI | alcove:refrigerator:npwhi |
When to call a technician
Stop and call at the point where a panel has to come off with power on, and call without hesitating if what you are looking at is the compressor itself. Call immediately, and unplug the cabinet first, if you smell burning, see oil around the compressor, or hear a hiss with a sharp smell.
Other symptoms covered for the NPWHI family
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