Hoshizaki KM-151BAH - Manual (Page 36)

31
2. NO ICE PRODUCTION
PROBLEM POSSIBLE CAUSE REMEDY
1. OFF position. 1. Move to ON position.
2. Loose connections. 2. Tighten.
3. Bad contacts. 3. Check for continuity and
replace.
4. Voltage too high. 4. Check and get
recommended voltage.
a) Power Supply
5. Unplugged. 5. Plug in.
b) Fuse (inside fused
disconnect, if any)
1. Blown out. 1. Check for short circuit and
replace.
1. OFF or WASH position. 1. Move to ICE position. c) Control Switch
2. Bad contacts. 2. Check for continuity and
replace.
1. Tripped with bin filled
with ice.
1. Remove ice. d) Bin Control Switch
2. Defective reed switch. 2. Check for continuity and
replace.
e) High Pressure
Control (KM-151
only)
1. Bad contacts. 1. Check for continuity and
replace.
f) Transformer 1. Thermal fuse blown out
or coil winding opened.
1. Replace.
g) Wiring to Control
Board
1. Loose connections or
open.
1. Check for continuity and
replace.
h) Thermistor 1. Leads shorted or open
and High Temperature
Safety operates. If
open, unit will start but
have long harvest cycle.
1. See “II. 4. HARVEST
CONTROL -
THERMISTOR”.
i) Hot Gas Solenoid
Valve
1. Continues to open in
freeze cycle and High
Temperature Safety
operates.
1. Check for power off in
freeze cycle and replace.
j) Water Supply Line 1. Water supply off and
water supply cycle does
not finish.
1. Check and get
recommended pressure.
Check for water supply.
1. Mesh filter or orifice
gets clogged and water
supply cycle does not
finish.
1. Clean. Replace if
necessary.
2. Coil winding opened. 2. Replace.
k) Inlet Water Valve
3. Wiring to Water Valve. 3. Check for loose
connection or open, and
replace.
[1] The icemaker
will not start.
l) Control Board 1. Defective. 1. See “II. 3. [d] CONTROL
BOARD CHECK
PROCEDURE”.