The short answer
When an under-counter refrigerator stops producing ice, examine one thing first: the water supply to the cabinet is off or half-closed. It is both the likeliest cause and the cheapest to rule out. Next on the list: the freezer is not cold enough to trigger a harvest. Nothing here needs a panel off until the last item.
What you observe
- The bin or the trays are empty and stay empty — Whether it stopped abruptly or tailed off already splits the list.
- Cubes are small, hollow or only part-formed — The mould is being underfilled rather than not filled.
- Ice cream in the same freezer has gone soft — The whole compartment is warm, not just the ice maker.
- Cubes have got steadily smaller over weeks — A gradual decline points at a restriction, not a failure.
- NEAR MISS — ice forms but tastes or smells wrong — A filter or storage question, not a production one. Different page.
Causes, most likely first on this unit
- The water supply to the cabinet is off or half-closed — First on this unit, because the shut-off behind or beneath it is easy to knock while cleaning or while pulling the cabinet out, and a half-closed valve gives exactly this fault: small, hollow or partial cubes rather than none at all.
- The freezer is not cold enough to trigger a harvest — Ranked here because a warm freezer stops ice production before any water part is at fault.
- The water filter is restricting flow — Ranked here because it is a consumable behaving exactly as a worn consumable should.
- The water inlet valve is weak or seized — Last, and a service part — testing it properly means a meter on live terminals.
Check in this order, and why
- Find the shut-off valve and confirm it is fully open — A part-open valve gives small or hollow cubes, not no cubes.
- Check that the freezer is genuinely hard-frozen — A freezer holds food safely at 0 °F (−18 °C) or below.
- Check how long the filter has been in service — A throttled filter shrinks the cube before it stops it.
- Note whether you hear the valve buzz at fill time — A buzz with no water is a valve; silence is upstream of it.
What an owner can safely check
- Establish whether it stopped suddenly or faded over weeks — Abrupt means a blockage or a switch; gradual means a restriction.
About 5 min
- Trace the supply line to its valve and open it fully — Then discard the first batch of ice before judging.
About 15 min
- Confirm the freezer is hard-frozen before anything else — A freezer holds food safely at 0 °F (−18 °C) or below.
Tools: thermometerAbout 30 min
- Replace the water filter and discard the first batches of ice — Flush the line through after fitting.
About 20 min
- STOP HERE before opening the ice maker or any water fitting — Pressurised water and live terminals are where an owner check ends.
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. A built-in slides under its own weight and traps fingers against the carcass. Support it as it comes out, and take the door off only with a second pair of hands.
When to call a technician
Call once the temperature is confirmed good, the supply is proven open and nothing is frozen in the fill path — what is left is an electrical part in a wet place, which is a meter job. Call sooner if the cabinet is also failing to hold temperature — then ice is the symptom, not the fault. Call immediately if you find water standing on or near an electrical connection.
Nearest pages of this class
What this page does not cover
This page is written for the brand and the cabinet class, not for one family or model line. Where a family- or model-specific page exists for your unit, it is the more specific answer and it is where to start. Deliberately absent: cut-out dimensions, grille and hinge identifiers and torque figures, which differ between the under-counter and tall built-in families.
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
