Common fault
Why has my ice maker stopped making ice?
Short answer
Judge it by the last tray. Small, hollow or dished cubes mean the mold never got a full charge of water — the filter, the pressure at the valve, or a fill tube half closed with ice. Poway Sub-Zero Repair Experts takes those calls on (858) 630-4145.
Why we start there
Nothing, in a compartment still cold, is the harvest side: the module, its thermostat or its motor.
What happens next
Long supply runs are normal on these lots and they change what the machine is working with. Water headed for an island machine or an outdoor kitchen travels a long way from the shutoff, often through a slab or an unconditioned space, and by July it arrives at the valve considerably warmer than it did in winter. Warmer inlet water means a longer freeze cycle, fewer harvests per day, and a bin that never quite fills, and nothing at all is broken. Pressure drops over distance too, so a valve that is entirely adequate on a short kitchen line can be marginal at the far end of a long small-diameter run, which shows up as a mold that fills a little short every single cycle.
Outdoor and undercounter machines add a heat problem to the water problem. The condenser is down at ankle height in a masonry or cabinet surround with no cross ventilation, it pulls in the fine grit that blows around out here all summer, and the surround itself has been storing afternoon sun for hours and is still giving it back at nine at night. Production halving in July with no component failure at all is an ordinary outcome of that, and it happens on precisely the weekend a full house needs ice. The airflow path gets cleared and the machine gets time to recover before anybody spends money, since from outside the door a fouled condenser and an underfed water line produce the same disappointing bin.
If that matches what yours is doing, say so when you call — it decides which parts come on the van.
Appliance down in Poway?
Tell us the brand and what it is doing — we can usually name the likely repair before we arrive.
Questions
Answers before you call
How soon can somebody come out, and do you really answer at night?
The line is answered at any hour, seven days a week, and there are same-day slots most days. What decides one visit or two is usually not the diary but whether the right part is already on the van — which is why we ask what the freezer is doing before anything else. Call Poway Sub-Zero Repair Experts on (858) 630-4145 and ask.
Does a built-in have to come out of the cabinetry to be worked on?
Almost never. It is built to be serviced in place: the condenser is reached through its grille — behind the lower kickplate on columns and undercounter units, above the doors on older combination built-ins — and the sealed systems open from the front. Pulling one out risks cabinetry and a custom panel. Say so when you call Poway Sub-Zero Repair Experts on (858) 630-4145.