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Hoshizaki KML-250MAH Guia Do Utilizador

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  PROBLEM
         POSSIBLE CAUSE
 REMEDY
l) Controller Board
1. Defective
1. See “II.2[e] CHECKING
    CONTROLLER BOARD.”
[2] Water
a) Float switch
1. Connector disconnected.
1. Place in position.
     continues to
2. Leads opened or defective
2. Check and replace.
     be supplied,
    switch.
     and the ice-
3. Float does not move freely.
3. Clean or replace.
     maker will not
b) Controller Board
1. Defective.
1. Replace.
     start.
[3] Compressor
a) Control Switch
1. “SERVICE” position.
1. Move to “ICE” position.
2. Bad contacts.
2. Check and replace.
b) High Pressure
1. Dirty Air Filter or
1. Clean.
    Controller
    Condenser.
2. Ambient or condenser
2. Reduce ambient temp.
    water temp. too warm.
3. Refrigerant overcharged.
3. Recharge.
4. Condenser water pressure
4. Check and get
     too low or off.  [Water-
     recommended pressure.
     cooled model only].
5. Fan not operating.  [Except
5. See chart 1 - [6].
    water-cooled model].
6. Refrigerant line or
6. Clean and replace Drier.
    components plugged.
c) Water Regulator
1. Set too high.
1. Adjust lower.
d) Overload Protector
1. Bad contacts.
1. Check for continuity and
     replace.
2. Voltage too low.
2. Increase voltage.
3. Refrigerant overcharged or
3. Recharge.
    undercharged.
4. Line Valve continues to
4. Check Line Valve's
    close in freeze cycle and
     operation in freeze cycle
    Overload Protector
     and replace.
    operates.
e) Starter
1. Bad contacts.
1. Check and replace.
2. Coil winding opened.
2. Replace.
f) Start Capacitor or
1. Defective.
1. Replace.
    Run Capacitor
g) Magnetic Contactor
1. Bad contacts.
1. Check for continuity and
     replace.
2. Coil winding opened.
2. Replace.
h) Compressor
1. Wiring to Compressor.
1. Check for loose
     connection or open, and
     replace.
2. Defective.
2. Replace.
3. Protector tripped.
3. Reduce temperature.
i) Controller board
1. Defective.
1. See “II.2. [e] CHECKING
    CONTROLLER BOARD.”