Hoshizaki KM-2500SWH3 - Manual (Page 40)

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Problem Possible Cause Remedy
[3]Other. a) Ice Cube Guide 1. Out of position. 1. Place in position.
b) Bin Control Thermostat 1. Bulb out of position. 1. Place in position.
2. Bad contacts. 2. Check for continuity and
replace.
3. Low Ice Production
Problem Possible Cause Remedy
[1] Freeze cycle time is
long.
a) Inlet Water Valve 1. Diaphragm does not
close.
1. Check for water leaks with
icemaker off.
b) Float Switch 1. Float switch does not
move freely.
1. Clean or replace.
2. Defective switch. 2. Check and replace.
c) Evaporator 1. Scaled up. 1. Clean.
2. Damaged. 2. Replace.
d) Spray Tubes 1. Dirty. 1. Clean.
2. Out of position. 2. Place in Position.
e) Water Pump 1. RPM too slow. 1. Check and replace.
f) Condenser (except
water-cooled model)
1. Air filter or condenser
clogged (except
water-cooled model).
1. Clean.
g) Refrigerant Charge 1. Low charge. 1. Check for leaks. Recover,
repair, evacuate, and
recharge.
h) Hot Gas Valve 1. Open. 1. Check and replace.
i) Expansion Valve 1. Bulb loose. 1. Secure bulb.
2. Operating erratically. 2. Check and replace.
j) Compressor 1. Erratic or off. 1. See chart 1. [3].
k) Condenser Water
(water-cooled model)
1. Water regulating valve
set too high.
1. Adjust or replace. See
"V.I. Adjustment of Water
Regulating Valve."
2. Condenser water
pressure too low.
2. Check and get
recommended pressure.
3. Water temperature out
of specification.
3. Correct to specification.
l) Liquid Line Valve 1. Erratic, sticking. 1. Check and replace.
m)Headmaster (C.P.R.)
(remote air-cooled
model)
1 Bypassing. 1. Replace.
n) Control Board 1. Float switch
connection loose (K5).
1. Check and reconnect.
2. Defective. 2. See "IV.B. Control Board
Check."