What this usually is
On the KS family, a cabinet that has stopped making ice usually comes down to freezer not cold enough to finish a cycle. The first check that pays is this one: measure the freezer with a thermometer, not by feel. Three of the four causes below are owner-checkable in minutes; the last is where a service call starts.
The symptoms, including the ones that mean something else
- The ice maker fills but the cubes never release — Water goes in on cycle and the tray stays full, which points at the harvest side rather than at the supply side.
- No water arrives at the tray at all — A dry tray with the maker cycling is a supply problem, and on an unplumbed cabinet it simply means the tray was not filled.
- Cubes are hollow, small or cloudy — Partial fills and slow freezing both leave cubes that look wrong, and they point at different parts of the chain.
- NEAR MISS: a knocking noise from the maker with ice still arriving — Fill and drop noises on cycle are normal, and the noise page explains which sounds belong to the cycle.
Causes in order of likelihood here
- Freezer not cold enough to finish a cycle — It leads because it is also the cause that explains the seasonal pattern nearly every owner describes: fine in winter, behind in summer, without a part having failed.
- No water reaching the maker — Many cabinets in this class are not plumbed at all and use a fill tray or a manual reservoir, so the single commonest reason for no ice is that nothing put water in it.
- Fill tube or tray frozen — It ranks here because it is the classic self-perpetuating fault: once the plug forms, the maker keeps cycling dry and the owner sees a maker that has failed rather than a tube that is blocked.
- Inlet valve weak or filter blocked — A filter that has never been changed produces the same short fill as a weak valve, which is why the filter is checked first and the valve second.
- Body: The table below lists the models the KS family covers, and they are close relatives rather than different designs, so the ranking here holds across the whole list. That order is the brand-generic order for this symptom, because nothing in how this line is built moves any of these causes past another.
The diagnostic order
- Measure the freezer with a thermometer, not by feel — A freezer holds food safely at 0 degrees Fahrenheit, which is minus 18 degrees Celsius, or below. Above that the maker will struggle whatever else is right.
- Establish first whether this unit is plumbed or filled by hand — On a manual cabinet there is no supply fault to find.
- Look at the fill tube where it enters the tray — A finger of ice at the tube mouth, or a tray with a frozen crust across it, is the whole answer.
- Body: The order follows the ranking above rather than the layout of the cabinet: each check either confirms the cause above it or removes it, and they are arranged so that the free checks come before anything that needs the unit moved or a panel off. Access is the same across the models in the table, so the order holds for all of them.
Before any panel comes off
Safety
Power off at the plug or the breaker first, then work. Never chip ice out of the tray, the tube or the compartment with anything metal: the tubing behind the liner is the sealed system, and a hole in it is not repairable at home.
Models in the KS family
Reference| Model number | Family key |
|---|---|
| KS-35F | antarctic-star:refrigerator:ks |
| KS-40R | antarctic-star:refrigerator:ks |
When this becomes a service call
Call if the ice maker is the second thing that has gone wrong rather than the first. Poor ice production that arrives with a freezer drifting warm, with frost building on the rear wall, or with a compressor that never stops, is not an ice maker fault at all; it is the cooling system, and the ice is simply the first thing to notice.
Other faults covered here
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
