The short answer
On a 4w5ij90 refrigerator this almost always turns out to be air that has stopped moving rather than cold that has stopped being made. The brand-generic article ranks a failed compressor high because it has to cover every Amana platform at once; on this one the airflow path is the part that fails first.
What you actually observe
- The freezer is cold but the fresh-food side is not — One compartment in spec and the other not is a routing symptom, not a cooling one.
- The compressor never cycles off — It runs without ever reaching temperature, which is the same fault seen from the other side.
- Condensation on the cabinet edge or on the shelves — Warm humid air is getting in somewhere and condensing on whatever is still cold.
- NEAR MISS — the unit is silent and nothing is cold — If nothing hums at all, stop here and start there instead.
Causes on the 4w5ij90 listings, most likely first
- Frost blocking the evaporator — Adaptive defrost on this platform stalls before it fails outright, so ice builds over weeks while the cabinet drifts warm a degree at a time. Ice on the coil is the single most common reason one of these runs constantly and still loses ground. The long revision run above covers a lot of production, and the oldest listings in it reach this point first.
- Evaporator fan motor failure — A failing fan motor gives you a warm cabinet with no frost sheet to show for it, which is what separates it from an iced-up coil. It can chirp or rumble for weeks before it stops.
- A condenser coil packed with dust — When the coil is furred over, the whole machine works harder and the cabinet simply never catches up on a warm day. Clearing it is a brush and a vacuum, not a repair.
- A thermistor reading the wrong temperature — A sensor reading low tells the board there is nothing to do, and the unit obediently does nothing.
Check in this order, and why
- Listen at the freezer for the evaporator fan — Hold the door switch in so the fan is allowed to run; it separates the two likeliest causes before any tool comes out. Silence with the switch held is a result, not a non-result.
- Look at the freezer rear panel for frost — If the fan runs and the coil is iced, the defrost path is your fault and the fan is a bystander. Frost at the vent slots counts, even if you cannot see the coil.
- Check the condenser coil and the condenser fan — Do this before anything behind a panel, because it is free, quick, and fixes more of these than any single part. The coil is at the back or underneath depending on the listing.
- Confirm the damper between compartments opens — Worth doing early only when the freezer is cold and the fridge is not, and worth skipping entirely when both are warm. Frost around the housing answers it without a teardown.
Before you open anything
Safety
Unplug the appliance or switch off its breaker before removing any panel. A capacitor can hold a charge after the power is off. Pull the cabinet out squarely rather than walking it on its corners; on a loaded unit the door can swing as the weight shifts.
Models in the 4w5ij90 family — A long run of 10 listings, all one platform — the suffix is a revision marker.
Reference| Model number | Family key |
|---|---|
| 4w5ij90-07 | amana:refrigerator:4w5ij90 |
| 4w5ij90-08 | amana:refrigerator:4w5ij90 |
| 4w5ij90-09 | amana:refrigerator:4w5ij90 |
| 4w5ij90-10 | amana:refrigerator:4w5ij90 |
| 4w5ij90-11 | amana:refrigerator:4w5ij90 |
| 4w5ij90-12 | amana:refrigerator:4w5ij90 |
| 4w5ij90-13 | amana:refrigerator:4w5ij90 |
| 4w5ij90-14 | amana:refrigerator:4w5ij90 |
| 4w5ij90-15 | amana:refrigerator:4w5ij90 |
| 4w5ij90-16 | amana:refrigerator:4w5ij90 |
When to call a technician
Call once the airflow checks are clean and the compartment is still warm, because everything left below that point is sealed-system work. Refrigerant is licensed work and the gauges to diagnose it are not owner tools. Call immediately if you see oil at the compressor or smell anything burning: oil outside the tubing means the system is open, and every hour it runs after that costs more to put right.
The other symptoms covered for this family
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
