The short answer
Most no-ice calls on this roster turn out to have nothing wrong with the icemaker at all. The fill line freezes where it enters the compartment, the supply valve gets nudged shut behind the cabinet, or the compartment never reaches the temperature that triggers a harvest. All the first checks are owner work, and most of them need nothing but a look. This is a family page, so it is written at the level the listings have in common and stops there.
What you actually see
- Water on the floor of the freezer under the icemaker — Overfill, or a fill tube that is thawing and dripping. Either way the supply side is where to look.
- The mechanism cycles and dumps nothing — It is being told to harvest and has nothing to harvest, which is the signature of a frozen or closed supply.
- Cubes are small but properly formed — A short fill rather than a blocked one. Suspect a restriction in the filter or a partially closed supply tap.
- Ice is being made but far too slowly — Usually a compartment that is not quite cold enough, or a restricted supply that fills the tray part way.
- NEAR MISS — the whole freezer is soft — Then the icemaker is a symptom and the cooling failure page for this family is the one you want.
Ranked causes for these models
- Fill tube frozen — Top of the list here. The tube crosses from warm into cold and the last of each fill sits in that crossing; freeze it once and the mechanism harvests nothing from then on.
- Supply shut off, kinked or restricted — Second and entirely mundane. Valves get closed during other work and lines get pinched when a cabinet is pushed back, and neither event is remembered later.
- Shut-off arm or bin sensor holding the mechanism off — The cheapest fault here. An arm lifted by a bag of frozen peas, or a sensor beam interrupted by frost, tells the icemaker the bin is full when it is empty.
- Water filter blocked or overdue — A filter at the end of its life restricts flow enough to part-fill the tray, which is where hollow cubes come from. It also tends to be the last thing anyone thinks of.
- Water inlet valve or icemaker module failed — Bottom of the list. Both are genuine failures, both need testing rather than guessing, and that is where this page hands over.
The diagnostic order for this family
- Check the shut-off arm is down, or the bin sensor is clear — An arm held up by a stored bag stops production completely and takes a second to rule out.
- Dispense water at the door, if the cabinet has a dispenser — Water at the door proves the supply reaches the cabinet, which cuts the list in half immediately.
- Check the age of the water filter — A restricted filter part-fills the tray, and it explains hollow cubes better than anything else on the list.
- Force a harvest cycle and watch what the mechanism does — A mechanism that goes through its motions and delivers nothing has a supply problem, not a mechanical one.
Isolate first
Safety
Take the power away first — at the plug, or at the breaker where there is no reachable plug — and treat any capacitor as charged until proven otherwise. Do not lever a frozen icemaker mechanism free.
Models in the AT family — Every listing below is in scope. The table is the boundary of this page's generalization.
Reference| Model number | Family key |
|---|---|
| AT16B | attitude:refrigerator:at |
| AT16BF | attitude:refrigerator:at |
| AT16BL | attitude:refrigerator:at |
| AT50FRE | attitude:refrigerator:at |
Where the owner line is
Stop at the point where the supply path is proven good. Everything after that is electrical testing inside a cold cabinet, which is service work on this roster.
The rest of 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.
