Hoshizaki KM-230BAJ Service Manual page 27

PROBLEM
[4] Water a) Inlet Water Valve
continues to
be supplied in
freeze cycle.
b) Control Board
[5] No water a) Water Supply Line
comes from
Spray Tubes.
Water Pump
b) Inlet Water Valve
will not start,
or freeze
cycle time is
c) Water System
too short.
d) Pump Motor
e) Control Board
[6] Fan Motor will a) Fan Motor
not start, or is
not operating.
b) Control Board
[7] All a) Refrigerant
components
run but no ice
is produced.
b) Compressor
c) Hot Gas Solenoid
Valve
POSSIBLE CAUSE
1. Diaphragm does not close.
1. Defective.
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 open.
2. Bearing worn out.
3. Wiring to pump motor.
4. Defective capacitor.
5. Defective or bound impeller.
1. Defective.
1. Motor winding open.
2. Bearing worn out.
3. Wiring to fan motor.
4. Fan blade bound (locked fan
motor).
1. Defective.
1. Undercharged.
2. Air or moisture trapped.
1. Defective.
1. Continues to open in freeze
cycle.
26
REMEDY
1. Check for water leaks
with icemaker off.
Replace if necessary.
1. See "II.C. Control Board
Check".
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.
5. Replace and clean.
1. See "II.C. Control Board
Check".
1. Replace.
2. Replace.
3. Check for loose
connection or open, and
replace.
4. Check and replace.
1. See "II.C. Control Board
Check".
1. Check for leaks and
recharge.
2. Replace drier, and
recharge.
1. Replace.
1. Check and replace.