How Long Do Nugget Ice Makers Last?

What actually degrades, in order

1. Scale on the freezing cylinder. This is first, and it is gradual rather than sudden. Scale insulates the surface that has to move heat, so the machine runs longer for less ice. Most people experience this as "it got slow" rather than as a fault, and many replace the machine over it. It is reversible with an acid descale.
2. Biofilm in the water path. Second, and entirely preventable. Ice tastes wrong, then the reservoir looks wrong, then flow restricts. Reversible with cleaning, and prevented outright by emptying the machine when it is idle.
3. The pump. Third, and usually a consequence of the first two rather than an independent event. A pump pushing water through restricted tubing works harder than one that is not.
4. The auger assembly. The expensive part, and the one people worry about first. A squeal is usually the auger under load from scale rather than a failing motor, so descale before concluding anything. See why it squeals.
5. The refrigeration system. Last, rarest, and effectively terminal on a countertop appliance. If a sealed system fails, the economics of repair almost never work.

The useful pattern here: the first three are maintenance, not failures. Which means the honest answer to "how long will it last" is largely "how well will you look after it", and that is genuinely within your control rather than a platitude.

What you control

What you choose at purchase

One thing at purchase genuinely affects longevity, and it is not build quality, which you cannot assess from a listing anyway. It is whether the manufacturer publishes procedures and supplies parts.

• GE publishes cleaning procedures, error-code meanings and a normal-sounds page for the Opal line, and filters and cleaning kits are widely stocked.
• KBice publishes a service manual as well as a user manual, which is unusual at its price point and is a genuine signal.
• Frigidaire and NewAir publish specification tables and cleaning sections.
• Euhomy and ecozy publish neither specification tables nor, as far as we can find, service documentation. A failure on one of those machines is likely the end of it.

That is the strongest longevity argument for spending more in this category, and it is more defensible than any claim about build quality. It is also part of why these machines cost what they do.

When to stop repairing

Descale first, always: a slow machine is a scaled machine far more often than it is a dying one. Clean second. If production is still badly down after both, and the machine has no published service procedure or available parts, you are looking at replacement.

If it stopped entirely, work through the not-making-ice checklist before spending anything. A surprising share of dead machines are a missing baffle, a blocked outlet or an ambient temperature problem.