110 Part Number STH034 3/12
Other
Problem Possible Cause Remedy
Abnormal
noise.
Fan Motor Bearing worn out. Replace
Fan blade deformed Replace fan blade
Fan blade does not
move freely
Replace
Compressor Bearings worn out,
or cylinder valve
broken
Replace
Mounting pad out of
position
Reinstall
Refrigerant
Lines
Rub or touch lines or
other surfaces
Replace
Gear Motor (Ice
Making)
Bearing of gear
worn out / damaged
Replace
Evaporator Low-side pressure
too low
See if expansion valve
bulb is mounted properly,
and replace the valve if
necessary
Scale on inside wall
of freezing cylinder
Remove auger. Use
Manitowoc Ice Machine
Cleaner solution to clean
periodically. If the water is
found hard by testing,
install a softener
Overflow
from
reservoir
(Water does
not stop).
Water Supply Water pressure too
high.
Install a pressure
reducing valve
Control Water
Valve
Diaphragm does not
close
Clean or replace
Float Switch Bad contacts Check for continuity and
replace
Gear Motor
Fuse blows
or circuit
breaker trips
frequently.
Power Supply
Voltage
Too high or too low Connect the unit to a
power supply of proper
voltage
Evaporator Assy Bearings or auger
worn out
Replace bearing or auger
Bin Control Bad contacts Check for continuity and
replace
Activator does not
move freely
Clean axle and its
corresponding holes or
replace bin control
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