Sub-Zero UC-15IO Ice Maker Use and Care Guide - Page 12

Troubleshooting Guide 12 Troubleshooting If your ice machine is not operating properly, use the following troubleshooting guide before contacting Sub-Zero factory certified service. This guide will save you time and trouble and may help you avoid the expense of a service call. Ice machine does not operate. • Press the POWER key pad to turn on the ice machine. Verify that it is plugged into a 115 V AC outlet. • Check the household fuse or circuit breaker to see if it has been blown or tripped. A power outage may also have caused a disruption in service. • Bin thermostat may need adjustment, refer to page 7. • Drain pump safety switch is open. Verify that the line is not kinked or crimped before calling for service. Ice machine operates, but no ice is produced. • No water is being supplied to ice machine. Connect water supply. • Incorrect incoming water pressure. Water pressure must be 20 psi (1.4 bar) to 80 psi (5.5 bar). If a reverse osmosis system is used to supply water, it may not provide adequate, constant water pressure. • Spray nozzles blocked with mineral buildup. Clean and sanitize the ice machine, refer to page 9. • Ambient air temperature is too high or too low. Ambient air temperature must be between 50°F (10°C) and 100°F (40°C) for indoor models and between 50°F (10°C) and 110°F (45°C) for outdoor models. • Water filter is clogged. Replace water filter, clean and sanitize ice machine and clean condenser. Refer to pages 8-11. Freeze cycle is long, low ice production. • Water temperature is too high. Connect a cold water supply, verify that check valves in faucets and other equipment are functioning correctly. • Dirty condenser. Clean condenser, refer to page 10. • Vents in kickplate are obstructed. Remove obstruction. • Ambient air temperature is too high. Ambient air temperature must be between 50°F (10°C) and 100°F (40°C) for indoor models and between 50°F (10°C) and 110°F (45°C) for outdoor models. • Water filtration is poor. Replace water filter, refer to page 11. • Water inlet valve is not working properly. Turn off ice machine. If water continues to enter ice machine, the water inlet valve must be replaced, contact Sub-Zero factory certified service. • Refrigeration problem. Contact Sub-Zero factory certified service. Poor ice quality, cubes are shallow, incomplete or white. • Ice machine is dirty. Follow the cleaning and sanitizing procedure on page 9. • Water filtration is poor. Replace water filter, refer to page 11. • Water softener is not working properly (if applicable). Repair the water softener. • Poor incoming water quality. Consult a qualified professional to test the water quality and recommend appropriate water treatment.