Sub-Zero 3 1 5 I Installation & Operation Manual page 21

S U B - Z E R O T R O U B L E S H O OT I N G
T R O U B L E S H O OT I N G
P R O B L E M
Unit operates
but no ice falling in
storage bin
G U I D E
G U I D E
P O S S I B L E C A U S E
Ice may be stuck in the evaporator
and the unit is "frozen up"
Too much heat load
No water spray
No airflow
Cube size control will not close
Compressor does not operate
properly or at all
Not enough refrigerant
Restricted system
Hot gas valve leaks through
P O S S I B L E S O L U T I O N
Check water supply – filter may
be restricted
Check inlet water valve – inlet screen
may be restricted or valve does not
operate
Hot gas valve may not operate –
check and repair or replace
Harvest time set too short – timer
needs adjustment (see page 19)
Inlet water valve leaks through,
must be replaced
Water pump does not operate, must
be replaced or check for water
leak in reservoir
Fan motor does not operate or fan
blade is broken, must be replaced
Condenser completely blocked,
must be cleaned (see page 17)
Defective control, must be replaced
Inlet water valve leaks through,
must be replaced or not enough
refrigerant, call a Sub-Zero
authorized service center
Start relay or capacitor must be
replaced
Call a Sub-Zero authorized service
center
Call a Sub-Zero authorized service
center
Call a Sub-Zero authorized service
center
Call a Sub-Zero authorized service
center
21