What this usually is
On a Martel refrigerator, an ice maker that has stopped or slowed is most often the shut-off arm or sensor holding the machine off rather than a new or newly moved cabinet that has not settled yet. The mechanical causes come first, because on a machine of this age the moving parts of the ice maker are older than anything else in it. All three checks below are owner work, and not one of them needs a part.
The symptoms, and the ones that mean something else
- Ice production that has slowed over months — A gradual decline is a restriction building rather than a part failing.
- No ice at all, and the mould is dry — A dry mould means the water is not arriving, so the search starts at the supply.
- A solid block of fused ice in the bin — Fused cubes tell the machine the bin is full, so it stops on purpose.
- NEAR MISS — the ice maker is noisy but working — Fill, harvest and auger noises are normal; the noise page covers them.
Causes, most likely first on this brand
- The shut-off arm or sensor holding the machine off — A wire arm lifted by a bag of food, or an optical sensor with frost across it, tells the machine the bin is full. It stops on purpose and gives no fault of any kind, because as far as it knows nothing is wrong. It leads because the machine is behaving correctly on bad information, and that is the cheapest possible fault to find. They are found in older kitchens and utility rooms where the services around them are as old as the machine.
- A water filter long past its change point — The filter sits in the same line that feeds the mould. Clogged, it throttles the flow until the mould fills only partly, so the cubes come out hollow, small or half-formed rather than not at all. It sits here because it explains small cubes rather than no cubes, and that distinction saves a lot of wasted searching.
- A new or newly moved cabinet that has not settled yet — After installation the freezer has to reach temperature and the first fills flush air and debris from the line. The first batches are often small, hollow or cloudy, and they get discarded rather than diagnosed. It is last because the cabinet has been in place and working for months.
Check in this order, and why
- Look at the shut-off arm or the sensor window — An arm lifted by a package, or a frosted sensor, stops the machine without any fault at all. First, because it is the likeliest to end the job.
- Check when the filter was last changed — If nobody can say, that is the answer. A filter is the only deliberate restriction in the line. Second, once that is clean.
- Ask when the cabinet was installed or last moved — A few days old means it is still working through its first cycles. Third, and by now the answer is usually in hand.
The owner-side checks
- Lower the arm, clear the sensor window and repack the shelf around it — Keep packages clear of the arm's travel afterwards.
Tools: clothAbout 10 min
- Change the filter cartridge and run several batches off — Discard the first batches: they carry the air and carbon fines flushed from the new cartridge.
About 25 min
- Give a newly installed cabinet a full day and discard the first batches — Judging it sooner tells you nothing at all.
About 20 min
- STOP — switch the ice maker off and note what each check showed — Leaving it cycling against a blockage makes the next repair larger, and it tells you nothing new.
The part that is not optional
Safety
Unplug the appliance or switch off its breaker before removing any panel. A capacitor can hold a charge after the power is off. Never thaw a fill tube with anything sharp or with a heat gun: the tube and the mould are thin plastic and both fail permanently with heat.
The line between a fix and a call
The line is the valve and the module. Everything upstream — the shut-off valve, the line, the filter, the arm and the bin — is yours; the electrical parts behind the cabinet and inside the freezer wall are not. On this brand parts are conventional and mostly generic, which keeps a repair sensible.
Where to go next
Generalized information
This page is written for the appliance class, not for one Martel model line. Where a family- or model-specific page exists it is the better answer and it is linked below — go there first if your model is named. Not here: module variants, harvest timings, filter cartridge references, or valve part numbers.
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.