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.

Our Marshville ice maker stopped working after a new well pump was installed. Could that be related?

It can be. Well work often stirs up sediment that rushes into the refrigerator filter and inlet valve. Replace the filter first and see if ice production recovers. If not, the valve screen may be clogged and need cleaning or replacement.

Can you fix the ice dispenser in a Wingate rental fridge between tenants?

Yes, and turnover is a good time to do it. We test the auger motor, door flap and switch, check the ice maker, and report the findings to the owner or manager with a price before work.

Sub-Zero Repair

Sub-Zero Ice Maker Repair in Monroe, Wingate & Marshville, NC

Sub-Zero ice maker repair in Monroe, Wingate & Marshville, Union County. We diagnose first and agree the price before any work.

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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.

Well Water, Filters and Busy Dispensers

An ice maker is often the first appliance to complain about well water. Sediment and iron load the refrigerator filter faster than its rated life, and a clogged filter or valve screen makes thin, hollow or misshapen cubes. Minerals can also build up where the fill tube enters the freezer, letting it freeze shut and stopping production entirely.

In Wingate rentals and busy Monroe households, the dispenser takes a beating. Ice clumps in the bin when the dispenser is not used for a while, and the auger stalls trying to push it. Empty and break up the bin, and confirm the ice maker's arm or switch is in the on position.

Change the refrigerator filter, and if you are on a well, do it more often than the label suggests. When ice is still slow, our technician checks water pressure and the inlet valve, thaws and inspects the fill tube, and tests the ice maker and dispenser motor. We price the repair before replacing parts.