Hoshizaki KML-200MAE User Guide

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  PROBLEM
         POSSIBLE CAUSE
 REMEDY
[1] The icemaker
a) Power Supply
1. “OFF” position.
1. Move to “ON” position
     will not start
2. Loose connections.
2. Tighten
3. Bad contacts.
3. Check for continuity and
     replace.
4. Voltage too high.
4. Check and get
     recommended voltage.
b) Fuse (Inside Fused
1. Blown out.
1. Check for short circuit
     Disconnect, if any)
    and replace
c) Control Switch
1. “OFF” position.
1. Move to “ICE” position.
2. Bad contacts.
2. Check for continuity and
     replace.
d) Bin Control
1. Tripped with bin filled
1. Remove ice.
     Thermostat
    with ice.
2. Ambient temperature
2. Increase ambient
    too cool.
    temperature.
3. Set too warm.
3. See “II.2.[d]
    CONTROLS AND
    ADJUSTMENTS, 5) Bin
    Control.”
4. Bulb out of position.
4. Place in position.
5. Bad contacts or leaks
5. Check for continuity and
    bulb.
     replace.
e) High Pressure
1. Bad contacts.
1. Check for continuity and
    Control
     replace.
f) Transformer
1. Thermal fuse blown out
1. Replace.
    or coil winding opened.
g) Wiring to
1. Loose connections or
1. Check for continuity and
    Controller Board
    open.
     replace.
h) Thermistor
1. Leads short-circuit or
1. See “II.2.[d] CONTROLS
    open and High
    AND ADJUSTMENTS, 1)
    Temperature Safety
    Defrost Control.”
    operates.
i) Hot Gas Solenoid
1. Continues to open in
1. Check for power off in
   Valve
     freeze cycle and High
     freeze cycle and replace.
     Temperature Safety
     operates.
j) Water Supply Line
1. Water supply off and
1. Check and get
    water supply cycle does
     recommended
     not finish.
     pressure.
2. Condenser water
2. Check and get
    pressure too low or off
     recommended
    and Pressure Control
     pressure.
    opens and closes fre-
    quently to finally operate
    High Temperature Safety.
k) Water Solenoid
1. Mesh filter or orifice gets
1. Clean.
    clogged and water supply
    cycle does not finish.
2. Coil winding opened.
2. Replace.
3. Wiring to Water Valve.
3. Check for loose
    connection or open, and
    replace.
IV.  SERVICE DIAGNOSIS
1. NO ICE PRODUCTION