Hoshizaki KM-151BAH - Manual (Page 38)

33
PROBLEM POSSIBLE CAUSE REMEDY
a) Water Supply Line 1. Water pressure too low
and water level in Water
Tank too low.
1. Check and get
recommended pressure.
b) Inlet Water Valve 1. Dirty mesh filter or
orifice and water level in
Water Tank too low.
1. Clean.
1. Water leaks. 1. Check connections for
water leaks, and replace.
c) Water System
2. Clogged. 2. Clean.
1. Motor winding opened. 1. Replace.
2. Bearing worn out. 2. Replace.
3. Wiring to Pump Motor. 3. Check for loose
connection or open, and
replace.
4. Defective Capacitor. 4. Replace.
d) Pump Motor
5. Defective or bound
impeller.
5. Replace and clean.
[5] No water
comes from
Spray Tubes.
Water Pump
will not start, or
freeze cycle
time is too
short.
e) Control Board 1. Defective. 1. See “II. 3. [d] CONTROL
BOARD CHECK
PROCEDURE”.
1. Motor winding opened. 1. Replace.
2. Bearing worn out. 2. Replace.
3. Wiring to Fan Motor. 3. Check for loose
connection or open, and
replace.
a) Fan Motor
4. Fan blade bound
(locked Fan Motor).
4. Check and replace.
[6] Fan Motor will
not start, or is
not operating.
b) Control Board 1. Defective. 1. See “II. 3. [d] CONTROL
BOARD CHECK
PROCEDURE”.
1. Undercharged. 1. Check for leaks and
recharge.
a) Refrigerant
2. Air or moisture trapped. 2. Replace Drier, and
recharge.
b) Compressor 1. Defective. 1. Replace.
[7] All
components
run but no ice
is produced.
c) Hot Gas Solenoid
Valve
1. Continues to open in
freeze cycle.
1. Check and replace.