SUB-ZERO DIAGNOSTICS
Ice Maker Repair
Clear-ice and standard ice modules — water inlet faults, harvest cycle failures, and the mineral buildup Chicago's water hardness accelerates.
Request Service — $95 Flat DiagnosticCommon symptoms
- No ice production
- Hollow or cloudy ice
- Water inlet valve fault
Models we service
Frequently asked questions
Why has my Sub-Zero ice maker stopped producing ice?+
The most common causes are a water supply issue — low pressure, a clogged filter, or a frozen fill tube — or a failed water inlet valve. Less often, the ice maker module itself has failed. A technician checks water flow before replacing parts.
Why is my Sub-Zero ice cloudy or hollow instead of clear?+
Cloudy or hollow ice usually means the fill cycle isn't completing properly, often from reduced water pressure or a partially clogged filter. Clear-ice models are more sensitive to this than standard ice modules.
How does Chicago's water hardness affect Sub-Zero ice makers?+
Chicago's hard water accelerates mineral buildup in the water inlet valve and fill tube, which slows ice production over time even without a hardware failure. Regular filter changes and periodic descaling reduce how often this becomes a service call.