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S U B - Z E R O
T R O U B L E S H O OT I N G
G U I D E
S E R V I C E
C E N T E R
Contact your
Sub-Zero dealer or
check the Locator
section of our
website,
subzero.com, for
the authorized
service center
nearest you.
T R O U B L E S H O OT I N G
G U I D E
P R O B L E M
P O S S I B L E C A U S E
P O S S I B L E S O L U T I O N
Ice machine will
No electrical power to the
Replace the fuse, reset the breaker,
not run
ice machine
turn on the main switch or plug in
ice machine.
POWER
button has not been
Refer to page 19 and activate the
depressed
ice machine.
Bin thermostat incorrectly
Adjust bin thermostat, refer to
adjusted
page 21.
Drain pump safety switch
Verify line is not kinked or crimped
is open
then call for service.
Ice machine runs and
No water to ice machine
Correct water supply.
no ice is produced
Incorrect incoming water pressure
Water pressure must be 20–80 psi
(1.4 bar–5.5 bar).
Spray nozzles blocked with
Clean and sanitize the ice machine,
mineral buildup
refer to pages 23–25.
Ambient temperature is too high
Ambient temperature must be
or low
between 50–100°F (10–38°C) for
models UC-15I and UC-15IP, and
between 50–110°F (10–43°C) for
models UC-15IO and UC-15IPO.
Water filter is clogged
Complete semi-annual maintenance,
refer page 23.
