Hoshizaki KM-40B, Руководство по обслуживанию

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39
PROBLEM POSSIBLE CAUSE REMEDY
[2] Water
continues to
be supplied,
and the
icemaker will
not start.
a) Float Switch 1. Connector
disconnected.
1. Reconnect.
2. Leads opened or
defective switch.
2. Check and replace.
3. Float does not move
freely.
3. Clean or replace.
b) Control Board 1. Defective. 1. Replace.
[3] Compressor
will not start or
operates
intermittently.
a) Control Switch 1. WASH position. 1. Move to ICE position.
2. Bad contacts. 2. Check and replace.
b) High Pressure
Control
(KM-80B only)
1. Dirty Air Filter or
Condenser.
1. Clean.
2. Ambient temperature
too warm.
2. Reduce ambient
temperature.
3. Refrigerant
overcharged.
3. Recharge.
4. Fan not operating. 4. See chart 2 - [6].
5. Refrigerant line or
components plugged.
5. Clean and replace Drier.
c) Overload
Protector
1. Bad contacts. 1. Check for continuity and
replace.
2. Voltage too low. 2. Increase voltage.
3. Refrigerant
overcharged or
undercharged.
3. Recharge.
d) Starter 1. Bad contacts. 1. Check and replace.
2. Coil winding opened. 2. Replace.
e) Start Capacitor 1. Defective. 1. Replace.
f) Power Relay 1. Bad contacts. 1. Check for continuity and
replace.
2. Coil winding opened. 2. Replace.
g) Compressor 1. Wiring to Compressor. 1. Check for loose
connection or open, and
replace.
2. Defective. 2. Replace.
3. Protector tripped. 3. Reduce temperature and
verify cause.
h) Control Board 1. Defective. 1. See “II. 3. [d] CONTROL
BOARD CHECK
PROCEDURE”.
i) Condenser, Air
Filter
1. Clogged with dirt and
dust.
1. Clean and unclog.
[4] Water
continues to
be supplied in
freeze cycle.
a) Inlet Water Valve 1. Diaphragm does not
close.
1. Check for water leaks
with icemaker off.
Replace if necessary.
b) Control Board 1. Defective. 1. See “II. 3. [d] CONTROL
BOARD CHECK
PROCEDURE”.