Hoshizaki FD-1001MLH(-C) Refrigerator User Manual


 
74
2. Low Ice Production
Problem Possible Cause Remedy
[1] Low ice production. a)Evaporator 1.Dirty. 1.Clean. See "VI.A.
Cleaning and Sanitizing
Instructions."
b)Bin Control 1.Erratic, sticking,
defective.
1.See "IV.D. Bin Control
Check."
c)Losing Water 1.Drain valve leaking. 1.Clean or replace.
.
Mechanical seal
leaking.
.Replace.
3.O-ring leaking. 3.Replace.
d)Expansion Valve (TXV)
(not adjustable)
1.Low-side pressure too
low.
1.Replace.
.
Low-side pressure too
high.
.See if expansion valve
bulb is mounted properly,
and replace the valve if
necessary.
e)Refrigerant Line 1. Gas leaks. 1.Check for leaks with a leak
detector. Repair leaks.
Replace drier and charge
with refrigerant. See "V.A.
Service for Refrigerant
Lines."
.
Refrigerant lines or
components restricted
.Remove the restriction or
component and replace
the drier.
3.Overcharged. 3.Recharge.
f) High-Side Pressure
Too High
1.Dirty air lter or
condenser.
1.Clean.
.
Ambient or condenser
water temperature too
warm.
.Reduce temperature.
3.Fan motor slow rpm. 3.See "3.[]a) Fan Motor".
4. Fan motor capacitor. 4.Check and Replace.
5.Condenser water
pressure too low or off
(water-cooled model).
5.Check and get
recommended pressure.
6.Water regulating
valve restricted
(water-cooled model).
6.Clean.
g)Compressor 1.Inefcient compressor. 1.Replace compressor.
.
Faulty thermal
protector (overload).
.Replace compressor.
3.Faulty capacitor/
starter.
3.Replace components.