Troubleshooting Guide - Sub-Zero UC-15IO Use And Care Manual

Troubleshooting Guide

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)
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
for indoor models and between 50°F
(40°C)
110°F for outdoor models.
(45°C)
• Water filter is clogged. Replace water filter, clean and
sanitize ice machine and clean condenser. Refer to
pages 8–11.
to 80 psi . If a reverse
(5.5 bar)
and 100°F
(10°C)
(10°C)
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
for indoor models and between 50°F
(40°C)
110°F
(45°C)
• 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
and
professional to test the water quality and recommend
appropriate water treatment.
(10°C)
for outdoor models.
12
and 100°F
and
(10°C)