The answer first
Before any part is replaced, the three inputs get checked in order — supply, temperature and the control arm — because each one produces an identical empty bin. That puts the shut-off arm or the ice maker switch is off at the top of the list here and a freezer that is not cold enough to harvest at the bottom.
Symptoms, including the ones that mean something else
- The maker fills and then overflows into the freezer — A fill valve that does not close, or a mould that is not harvesting on schedule.
- Ice tastes or smells of the freezer — Old ice absorbs everything around it, and a filter past its life adds its own flavour.
- NEAR MISS — ice tastes stale but production is normal — That is filter and storage territory rather than a fault.
The ranking
- The shut-off arm or the ice maker switch is off — First because it is free to check and it explains a real share of these calls — the arm is knocked up by a bag of frozen food and the machine stops obediently. It leads on a cellar cabinet because the setpoint is the product: a zone configured for reds is doing exactly what it was told while the owner reads it as a fault.
- The shut-off arm or sensor reading full — An arm nudged up by a stacked bin stops production entirely, and it is the first thing to look at. Electronics are checked here because a mode or a lock imitates a dead machine and costs nothing to clear.
- A door that is not sealing — Warm air into a freezer makes ice that partly melts and refreezes into a block, which reads as an ice-maker fault and is a door fault. A glass cellar door carries a soft gasket and a long hinge, and on a tall cabinet the gasket at the top corner is usually the first part to stop touching.
- A freezer that is not cold enough to harvest — The mould has to reach a harvest temperature before the cycle completes. A freezer running warm makes soft ice, slow ice or no ice at all.
Check in this order, and why
- Empty the bin completely and mark the time — Judging production from a partly full bin tells you nothing about what the machine is doing now.
- Feel the cubes: hollow, small or full — The shape of the cube names the fill problem without any tools.
- Look for a clump of ice against the bin paddle — It stops the maker and it is cleared by hand in seconds.
The checks you can do without a meter
- Run several litres through the dispenser after a filter change — It purges air that would otherwise starve the fill.
- Empty the bin, free the shut-off arm and leave the appliance to run for a day — A full day of normal running is the only honest test of an ice maker.
- STOP before removing the ice maker or testing its terminals — The module, the mould heater and the fill valve are metered tests on live terminals behind a panel.
Safety
Safety
Keep the freezer at 0 °F (−18 °C). Unplug before any work at the back of the cabinet, and get help moving a loaded appliance rather than walking it out alone.
When to stop and call
Call once the arm, the supply, the filter and the freezer temperature are all proved good — at that point the remaining candidates are the valve, the module and the mould heater, all of which are metered tests.
The same problem on other machines
What is deliberately not here
Generalized information: this describes the refrigerator class, not your serial number. Anything tied to a chassis — pinouts, part numbers, diagnostic key sequences — is absent by design. A family- or model-level page, where one exists, is linked below and takes precedence. The brand overview page linked below covers the other problems on this machine.
Links: - [Common Cavin Refrigerator Problems](/blog/cavin-refrigerator-problems) - [Cavin Refrigerator: Abnormal Noise or Vibration](/blog/cavin-refrigerator-abnormal-noise)
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
