Why is my Sub-Zero making small or hollow ice cubes?

Low water pressure, often from a clogged filter or partially closed valve, is the usual cause. Replacing the filter and checking the supply often fixes it.

We replaced the filter in our Indian Trail fridge and the ice maker still makes small cubes. Why?

Small or hollow cubes usually mean the ice maker is not getting enough water. A partially failed inlet valve or a fill tube with ice building inside are common reasons. A technician can test the valve and clear or repair the fill path.

Can you fix the ice dispenser on our Stallings refrigerator if the ice maker itself works?

Yes. If the bin fills but ice does not come out, the auger motor, dispenser door, switch or a jam of fused ice is often the cause. Empty the bin and break up any clumps first. If it still will not dispense, we can test the dispenser circuit.

Sub-Zero Repair

Sub-Zero Ice Maker Repair in Indian Trail & Stallings, NC

Sub-Zero ice maker repair in Indian Trail & Stallings, Union County. We diagnose first and agree the price before any work.

Same-day appointments when available90-day parts / 30-day labor warrantyAll major brandsPrice confirmed before work

(980) 588-8688

Open 24 hours, 7 days a week

Schedule Your Repair

Service Type

What type of service do you need?

Or call us directly:

(980) 588-8688

90-Day

Parts Warranty

Same Day

Availability

How It Works

Book Online or Call

Tell us the appliance, the brand and what it is doing

Technician Visit

Same-day when the schedule allows

Diagnose & Quote

Price agreed first — no work without your approval

Fix & Test

Repair done, tested before we leave

Related Services

Sub-Zero Ice Maker Repair

Atosa Ice Maker Repair

Hoshizaki Ice Maker Repair

Traulsen Ice Maker Repair

Manitowoc Ice Maker Repair

MaxxIce Ice Maker Repair

Perlick Ice Maker Repair

Scotsman Ice Maker Repair

Charlotte, NC & Nearby SC

Ready to schedule your repair?

ProFix Appliance Repair Charlotte — appliance repair across the Charlotte region. Same-day appointments when the schedule allows.

Call (980) 588-8688 Book Online Now

Sub-Zero Ice Makers: What We Check First

Sub-Zero ice comes from two very different machines. Most refrigerators and freezers have an automatic ice maker inside the freezer compartment, fed by a water valve and line. Separately, Sub-Zero sells undercounter ice makers that produce clear ice in a dedicated cabinet, often installed in a bar, butler's pantry or outdoor kitchen. Undercounter units need a water supply, a drain, and either gravity drainage or a drain pump.

Clogged water filter or low pressure reducing ice production
Frozen fill line stopping the in-freezer ice maker
Scale buildup on undercounter ice maker evaporators
Drain pump or drain line clog in undercounter installations

The full explanation, including what you can safely check yourself and when repair beats replacement, is in our Sub-Zero ice maker repair guide.

Why Built-In Ice Makers Stop Producing

Ice makers in these homes are usually part of a side-by-side or French-door refrigerator that came with the house. As they age, the problem might sit in several places: a water filter long past its change date, an inlet valve that no longer opens fully, a fill tube frozen solid, a mold heater or motor that stops cycling, or an auger that jams on clumped ice in the bin.

Some easy checks come first. Confirm the ice maker is switched on and the shutoff arm or sensor is not stuck in the full position. Replace the refrigerator water filter if it is overdue, and look at the freezer temperature, since an ice maker in a warm freezer slows down or stops. If cubes are hollow or tiny, low water flow is the likely culprit.

The technician checks water pressure at the valve, tests the ice maker module and dispenser parts, and looks for ice buildup in the fill tube or chute. We explain which part failed and give the price before replacing it. If the refrigerator is still under the manufacturer's warranty, we point that out so you can use that coverage instead.