The short answer
When a 4w5j21 refrigerator stops making ice, the useful first question is whether it is still trying. The generic Amana answer cannot tell you what a normal cycle sounds like on your cabinet; here the fill hum and the harvest drop are both audible, and their absence is the diagnosis.
What you actually observe
- An empty bin and a dry, empty mould — No water is arriving, which points at the fill path rather than at the ice maker.
- Water in the bin or ice on the freezer floor — A valve that does not close fully overfills and the overflow freezes where it lands.
- The bail arm is sitting in the raised position — Push it down and give it a few hours.
- NEAR MISS — no ice and the freezer is also warm — Start from the cooling page instead.
Causes on the 4w5j21 listings, most likely first
- A frozen fill tube — The tube that carries water to the mould sits in the coldest part of the cabinet, and once a dribble freezes in it nothing else gets through. The short revision run in the table above means these units left the line close together, so they wear at much the same rate.
- The bail arm or the ice level switch left off — A wire arm knocked up by a bag of frozen food tells the ice maker the bin is full, and it obediently stops.
- A clogged or wrongly seated water filter — A cartridge past its life throttles the flow enough that the mould fills short, and a short fill makes hollow cubes before it makes none.
- A kinked or shut supply line — A saddle valve half closed, or a line crushed against the wall when the cabinet was pushed back, starves the valve without leaking a drop.
Check in this order, and why
- Look into the mould, not into the bin — Dry mould and iced mould send you to opposite halves of this list, and nothing else distinguishes them. Do this before any other step.
- Check the bail arm or the level sensor is clear — It is free, it takes a second, and it is the single most common reason a working ice maker stops. Move whatever is leaning on the bin.
- Check the filter date and that it is fully seated — Cheap, quick, and it also tells you whether the dispenser has slowed, which is the same evidence from another angle. Purge a few litres after fitting.
- Thaw the fill tube with warm water — Only after the mould has been seen dry; doing it blind tells you nothing and risks the tube. Never use a heat gun for this: it melts the tube and the liner behind it.
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. Never free a stuck mould or a jammed auger with a metal tool while the unit is powered: the harvest motor can start without warning and the mould heater is live. Shut the water off at the supply valve before you disturb any fitting.
Models in the 4w5j21 family — A short run of 6 listings; the suffix is a revision marker, not a different machine.
Reference| Model number | Family key |
|---|---|
| 4W5J21-05 | amana:refrigerator:4w5j21 |
| 4W5J21-06 | amana:refrigerator:4w5j21 |
| 4w5j21-01 | amana:refrigerator:4w5j21 |
| 4w5j21-02 | amana:refrigerator:4w5j21 |
| 4w5j21-03 | amana:refrigerator:4w5j21 |
| 4w5j21-04 | amana:refrigerator:4w5j21 |
When to call a technician
The line on these models is whether the fix is in front of the mould or behind it. Water supply, filter and bin are all reachable; the module, the thermostat and the heater are behind the ice maker and need it out. Call the same day if there is water running out of the freezer as well as no ice, because that is a valve stuck open.
The other symptoms covered for this family
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Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
