Hoshizaki KML-351MAH Service Manual page 34

Problem
[1] The icemaker will not
start. (continued)
[2] Fill cycle will not
terminate.
[3] Compressor will
not start or stops
operating.
Possible Cause
i) Thermistor
j) Hot Gas Valve
k) Inlet Water Valve
l) Float Switch
m)Control Board
a) Water Supply
b) Float Switch
c) Control Board
a) Magnetic Contactor
b) Start Capacitor or Run
Capacitor
c) Internal Overload
Protector Open (check
1 through 3 to the right
and d through f below)
d) Starter
1. Leads shorted or open
and high temperature
or harvest backup
timer safety operates.
(1 beep or 2 beep
alarm)
1. Continues to open
in freeze cycle and
freeze timer safety
operates. (3 beep
alarm)
1. Mesh filter or orifice
gets clogged and
water supply cycle
does not finish.
2. Coil winding open.
3. Wiring to inlet water
valve.
1. Bad contacts.
2. Float does not move
freely.
1. Defective or in alarm. 1. See "II.C.4. Control Board
1. Water supply off or
pressure too low.
1. Connector
disconnected.
2. Defective switch.
3. Float does not move
freely.
1. Defective.
1. Bad contacts.
2. Coil winding open.
1. Defective.
1. Loose terminal.
2. Voltage.
3. Dirty condenser.
1. Bad contacts.
2. Coil winding open.
34
Remedy
1. See "II.D. Harvest Control
– Thermistor."
1. Check for hot gas valve
stuck open and replace.
1. Clean.
2. Replace.
3. Check for loose
connection or open, and
replace.
1. Check for continuity and
replace.
2. Clean or replace.
Check Procedure."
1. Check and get
recommended pressure.
1. Reconnect.
2. Check and replace.
3. Clean or replace.
1. See "II.C.4. Control Board
Check Procedure."
1. Check for continuity and
replace.
2. Replace.
1. Replace.
1. Tighten or replace.
2. Check and correct.
3. Clean.
1. Check and replace.
2. Replace.