Hoshizaki FD-1001MWH(-C) EN - Manual (Page 75)

75
3. Other
Problem Possible Cause Remedy
[1] Icemaker will not stop
when bin is filled with
ice.
a)Bin Control 1. Erratic or defective. 1. See "IV.D. Bin Control
Check."
[2] Abnormal noise a)Fan Motor (except
water-cooled model)
1. Bearing worn out. 1. Replace.
2. Fan blade deformed. 2. Replace fan blade.
3. Fan blade does not
move freely.
3. Replace.
b)Compressor 1. Bearings worn out, or
cylinder valve broken.
1. Replace.
2. Mounting pad out of
position.
2. Reinstall.
c) Refrigerant Lines 1. Rub or touch lines or
other surfaces.
1. Reposition.
d)Auger 1. Bearings or auger
worn out.
1. Replace bearings or
auger. See "V.D.1. Upper
Bearing Wear Check."
e)Gear Motor 1. Bearing or gear worn
out / damaged.
1. Replace.
f) Evaporator 1. Scale on inside wall
of evaporator freezing
cylinder.
1. Use "SCALE AWAY"
solution to clean
periodically. If the water
is found hard by testing,
install a softener.
2. Low refrigerant
pressures.
2. Check charge, check for
possible leak, repair,
re-charge.
3. Expansion valve bad. 3. Replace.
4. Evaporator bad.
4. Replace.
[3] Overflow from
reservoir (water does
not stop).
a)Water Supply 1. Water pressure too
high.
1. Install a pressure reducing
valve.
b)Inlet Water Valve 1. Diaphragm does not
close.
1. Clean or replace.
c) Float Switch 1. Bad contacts. 1. Check for continuity and
replace.
[4] Gear motor protector
operates frequently or
fuse blows frequently.
a)Power Supply 1. Not within
specifications.
1. Refer to nameplate and
correct.
b)Evaporator Assembly 1. Gear motor bearings
or auger bearings
worn out.
1. Replace bearings or
auger. See "V.D.1. Upper
Bearing Wear Check."
c) Bin Control 1. Defective. 1. See "IV.D. Bin Control
Check."
2. Actuator does not
move freely.
2. Clean shaft and its
corresponding holes or
replace bin control.
d)Control Board 1. Erratic operation of
gear motor relay.
1. See "IV.B. Diagnostic
Procedure."