Low Ice Production - Hoshizaki DCM-500BAH Service Manual

Problem
[5] All components
run, but no ice is
produced. (continued)

2. Low Ice Production

Problem
[1] Low ice production.
Possible Cause
d) Evaporator
e) Water Supply Line
(water-cooled model
only)
f) Water Regulating Valve
(water-cooled model
only)
Possible Cause
a)Evaporator
b)Bin Control
c) Drain Valve
d)Expansion Valve
e)Refrigerant Charge
f) Refrigerant Line
g)High-Side Pressure
Too High
h)Compressor
1. Defective.
1. Condenser water
pressure too low or
off and high pressure
control opens and
closes frequently.
1. Water regulating
valve set too high or
clogged (water-cooled
model only).
1. Dirty or defective.
1. Erratic, sticking,
defective.
1. Leaking water.
1. Bulb loose.
. Operating erratically.
1. Low charge.
. Overcharge.
1. Refrigerant line or
component restricted.
1. Dirty air filter or
condenser.
. Ambient (or
condenser) water
temperature too warm.
3. Fan motor slow rpm.
4. Fan motor capacitor.
5. Condenser water
pressure too low or off
(water-cooled model
only).
6. Water regulating
valve set too high or
clogged (water-cooled
model only).
1. Inefficient compressor. 1. Replace
. Faulty thermal
protector (overload).
3. Faulty capacitor/
starter.
41
Remedy
1. Replace.
1. Check and get
recommended pressure.
1. Clean, adjust, or replace.
Remedy
1. Clean or replace.
1. Clean or replace.
1. Clean or replace.
1. Secure bulb.
. Check and replace.
1. See "V.B. Service for
Refrigerant Lines."
. See "V.B. Service for
Refrigerant Lines."
1. Repair/replace the
clogged line/component
and replace the drier.
1. Clean.
. Reduce temperature.
3. See "3. [] a) Fan Motor."
4. Check and replace.
5. Check and get
recommended pressure.
6. Clean, adjust, or replace.
. Replace compressor.
3. Replace.