Hoshizaki KM-150BAF Service Manual page 34

PROBLEM
[5] No water a) Water Supply Line
comes from
Spray Tubes.
Water Pump b) Water Solenoid
will not start, or Valve
freeze cycle
time is too c) Water System
short..
d) Pump Motor
e) Controller Board
[6] Fan Motor will a) Fan Motor
not start, or is
not operating.
b) Controller Board
[7] All components a) Refrigerant
run but no ice
is produced.
b) Compressor
c) Hot Gas Solenoid
Valve
d) Water Solenoid
Valve
e) Water Supply
Line [Water-cooled
model only]
POSSIBLE CAUSE
1. Water pressure too low and
water level in Water Tank
too low.
1. Dirty mesh filter or orifice
and water level in Water
Tank too low.
1. Water leaks.
2. Clogged.
1. Motor winding opened.
2. Bearing worn out.
3. Wiring to Pump Motor
4. Defective Capacitor.
5. Defective or bound impeller. 5. Replace and clean.
1. Defective.
1. Motor winding opened.
2. Bearing worn out.
3. Wiring to Fan Motor.
4. Fan blade bound.
1. Defective.
1. Undercharged.
2. Air or moisture trapped.
1. Defective valve.
1. Continues to open in freeze
cycle.
1. Stuck open.
2. Diaphragm bleed port
clogged.
1. Condenser water pressure
too low or off and pressure
control opens and closes
frequently.
34
REMEDY
1. Check and get
recommended pressure.
1. Clean.
1. Check connections for
water leaks, and replace.
2. Clean.
1. Replace.
2. Replace.
3. Check for loose
connection or open, and
replace.
4. Replace.
1. See "II.2. [ e ] CHECKING
CONTROLLER BOARD."
1. Replace.
2. Replace.
3. Check for loose
connection or open, and
replace.
4. Check and replace.
1. See "II.2. [ e ] CHECKING
CONTROLLER BOARD."
1. Check for leaks and
recharge.
2. Replace Drier, and
recharge.
1. Replace.
1. Check and replace.
1. Replace.
2. Clean or replace
diaphragm.
1. Check and get
recommended pressure.