Hoshizaki KM-1301SAH/3 - Manual (Page 62)

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Problem Possible Cause Remedy
[3]Other. a) Ice Cube Guide 1. Out of position. 1. Place in position.
b) Thermostatic Bin
Control
1. Bulb out of position. 1. Place in position.
2. Bad contacts. 2. See "IV.C. Bin Control
Check."
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 or
defective switch.
1. Clean or replace. See "IV.
D. Float Switch Check and
Cleaning."
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. See chart 1.[5].
f) Condenser (except
water-cooled model)
1. Air filter or condenser
clogged.
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.J. 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 condenser
unit)
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."