The short answer for these models
Before opening anything, find out whether water is reaching the mould. A dry mould and a wet one send you to completely different halves of the problem, and the difference takes ten seconds to establish. Where this departs from the brand-level page is the ranking. A plumbed cabinet has a second source of water and a second thing to fail, and a page that ignores which one you have sends you looking in the wrong place, so on a HC unit the water-path checks lead.
What you actually see
- Before the list: which of the HC forms is in front of you — See whether the unit is plumbed. A supply line adds a whole class of fault that a manual-fill cabinet simply cannot have.
- Cubes are hollow, small or only half formed — Water is arriving but not enough of it, or the cycle is ending before the fill completes.
- The ice maker runs but the bin stays empty — Cubes are being made and then not released, which is a harvest or a jam problem.
- NEAR MISS — the whole cabinet is warm and the ice is only one symptom — Then cooling is the fault and ice is a consequence. The page about a unit that will not cool is the one to read.
Causes, most likely first on this family
- The bin, the arm or the switch is out of position — Common, free to correct, and one of the few faults that produces a perfectly healthy machine doing nothing. On a HC unit this rises to the top of the order, because the identification step above changes what it proves — so the water-path checks answer more in five minutes than the rest of the list answers in an hour.
- The fill valve, the mechanism or its heater — Last because everything above it is cheaper, more likely and checkable without tools, and because confirming this one means live terminals.
The order the checks belong in
- First — look at the mould and the bin — Look at the mould before you look at anything else. Dry sends you upstream to the supply and wet sends you downstream to the harvest.
- Second — check the shut-off arm or sensor position — Look at the arm or the sensor and make sure nothing is holding or covering it. It is a two-second check that explains a surprising share of dead ice makers. On these models this is the step the construction changes: what you found at the step above decides how much weight to give what you find here.
Before you open anything
Safety
Unplug the unit or switch off its breaker before a panel is removed, since a capacitor can hold a charge after the power is off. Never chip at ice with a knife or a screwdriver — the tubing behind it punctures easily and that turns a small job into a sealed-system repair. Let it melt, or use warm water and patience.
Where the owner job ends
The line is the panel. Anything you can reach with the bin out is yours; anything behind a cover is a visit. Say on the phone whether the mould is wet or dry, because that single fact decides which part the technician brings.
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.