Hoshizaki F-2000MLH, Service Manual

Page: 55 / 81

55
2. LOW ICE PRODUCTION
PROBLEM POSSIBLE CAUSE REMEDY
[1] Low ice production a) Refrigerant Line 1. Gas leaks. 1. See "1. [5] a) Refrigerant
Line."
2. Refrigerant line
clogged.
2. Replace the clogged
component.
3. Overcharged. [Except
F-2000MLH/-C]
3. Recharge.
b) 1. Dirty Air Filter or
Condenser. [Except
F-2000MLH/-C]
1. Clean.
2. Ambient or condenser
water temperature too
warm. [Except
F-2000MLH/-C]
2. Get cooler.
3. Condenser water
pressure too low or
off. [Water-cooled
model only]
3. Check and get
recommended pressure.
4. Fan rotating too slow. 4. See "3 [1] a) Fan Motor."
5. Water Regulating
Valve clogged. [Water-
cooled model only]
5. Clean.
6. Condensing unit out of
order. [F-2000MLH/-C
only]
6. Check condensing unit.
c) Expansion Valve (not
adjustable)
1. Low-side pressure too
low.
1. Replace.
2. Low-side pressure too
high.
2. See if Expansion Valve
Bulb is mounted properly,
and replace the valve if
necessary.
d) Evaporator Pressure
Regulator
[F-2000MLH/-C only]
1. Evaporator Pressure
Regulator set too high
or too low.
1. Check Evaporator
Pressure Regulator, and
adjust or replace it if
necessary.
High-side Pressure Too
High