Sub-Zero Icemaker repair and service in New York

Hollow or small cubes usually indicate a water pressure issue or a clogged inlet filter, not a broken freezer. If the water flow is too slow, the mold doesn't fill completely. Fused clumps often happen if the door seal is weak (letting warm air in) or if the "Max Ice" feature has been running too long without dispensing. We check the solenoid valve and water pressure to ensure full, solid crescents.

Sub-Zero units are designed to run with a high-grade microbiological water filter. Using a bypass plug is possible, but without filtration, the internal solenoid valves are more prone to getting stuck due to sediment in NYC water. We recommend and install OEM water filters to protect the internal mechanics and ensure the ice remains tasteless and odorless.

Not always. Sub-Zero ice makers have a safety "shut-off arm" (control arm). If this arm is dislodged or the switch behind it fails, the machine thinks the bin is full. Another common culprit is the freezer temperature: if it hovers above 5°F, the ice mold thermostat won't trigger the harvest cycle. We diagnose the thermistors to ensure the environment is cold enough for production.

Yes. The through-the-door dispenser relies on a chute door solenoid and a capture chute. If you see frost buildup in the chute or the flap isn't closing tight, warm air is entering the freezer. We repair the solenoid and replace the insulated flap seals to prevent motor freeze-up and restore smooth dispensing.

"Max Ice" increases ice production by up to 30% by engaging the evaporator fan more aggressively to cool the mold faster. It is designed for temporary use (parties/events). While it won't burn out the motor immediately, leaving it on 24/7 can strain the blower fan. We check if this feature is functioning correctly or if it has caused a frost blockage in the air ducts.