The work · Westwood, MA
Sub-Zero Ice Maker Repair in Westwood
Ice makers fail in patterns — fill, freeze, harvest, or the water supply feeding all three. We test the valve and inlet pressure, the module and its thermostat, the bin sensor, and the filter and line work that so often causes the problem in the first place.
As it is reported
How the fault usually sounds when you call
- Ice maker filling with water but never harvesting a cube
- Small, cloudy cubes appearing after a water filter change
- Grinding or knocking from the bin auger
- The ice maker switching itself off and needing a reset every week
Fill, freeze, harvest, and the water that feeds all three.
In the kitchen
The readings taken before a part is named
- Inlet valve operation and supply pressure at the connection
- A full cycle timed through fill, freeze and harvest
- Bin sensor behaviour with the bin full and with it empty
- Filter age, plus the state of the line and any shut-off behind the unit
Cost
The bands this work falls into
The bands below are typical ranges for this work around Greater Boston, not a quote. Where a job lands inside its band depends on the part, on whether that part is stocked or ordered for your model, and on how much of the cabinet has to come apart. Your own figure follows the diagnosis and arrives as one number for parts and labour.
| Repair | Range |
|---|---|
| Door gasket or seal replacement | $300–$730 |
| Evaporator or condenser fan motor | $300–$620 |
| Defrost heater, thermostat or sensor | $280–$670 |
| Ice maker, water valve or supply line | $300–$690 |
| Electronic control board | $520–$860 |
| Compressor or sealed-system repair | $940–$2,150 |
Flat $95 service call covering the visit and full diagnosis, credited against the repair once you approve it.
A like-for-like replacement is the other half of that decision: a new built-in of this class runs $8,660–$19,630 for the appliance alone, before delivery, panels, cabinetry or the fitting itself. That is the comparison worth making before a control board is written off as too expensive.
Before you book
Westwood water, and the filter
Westwood’s water reaches the ice maker through the Dedham-Westwood Water District at 74.1 to 134 ppm hardness (2025). After a filter change, the first two full bins of ice from a non-dispenser Classic or Designer go down the sink, per Sub-Zero, and a dispenser should pour water for two minutes. On a Legacy Classic (BI), one ice-cube icon blinking with no chime means the fill valve was open for too long and the ice maker has been switched off so the cabinet does not flood; once the supply has been checked, holding Alarm until CFC shows clears it.
Also on the same visit
Reviews · Sub-Zero Ice Maker Repair
What people said afterwards
4.9out of 5across 1,105 reviews
5 out of 5
Production dropped to almost nothing across the summer. The condenser was matted with pet hair and the reservoir sensor had scaled up. Cleaned and descaled, and he pointed out the filter interval printed on the label.
Camille D. · Needham Heights
5 out of 5
It filled with water and then never harvested. The module thermostat had failed and the inlet screen was partly blocked. Both dealt with in one visit, and he checked the shut off valve under the sink while he was here.
Susannah C. · Newton
5 out of 5
The unit had stopped filling at all. It turned out the old saddle valve on the basement line had closed itself up over the years. He fitted a proper valve, ran new tubing and tidied the old line away.
Hugh N. · Needham Center
Booking
Describe the fault. Get the figure before anything opens.
$95 brings a technician to the kitchen and pays for the diagnosis. Approve the repair and the call fee comes off its price. Visits 8:00 am – 8:00 pm, seven days, phone answered 24/7.