Hoshizaki DCM-500BWH-OS - Manual (Page 42)

4
3. Other
Problem Possible Cause Remedy
[1] Icemaker will not stop
when bin is filled with
ice.
a)Bin Control 1. Actuator sticking. 1. Adjust or replace.
. Proximity switch
closed.
. Replace.
[] Abnormal noise. a)Fan Motor (except
water-cooled model)
1. Bearing worn out. 1. Replace.
. Fan blade deformed. . Replace fan blade.
3. Fan blade does not
move freely.
3. Replace.
b)Compressor 1. Bearings worn out, or
cylinder valve broken.
1. Replace.
. Mounting pad out of
position.
. Reinstall.
c) Refrigerant Lines 1. Rub or touch other
lines or surfaces.
1. Reposition.
d)Auger 1. Bearings or auger
worn out.
1. Replace bearings or
auger. See "V.F. Removal
and Replacement of
Evaporator Assembly
Components."
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" or
"LIME-A-WAY" solution to
clean periodically.
See "VI. A. Cleaning and
Sanitizing Instructions." If
the water is found hard by
testing, install a softener.
. Evaporator defective. . 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.
d)Water Control Relay 1. Bad contacts. 1. Replace
[4] Gear motor overload
protector operates
frequently or fuse
blows frequently.
a)Power Supply 1. Not within
specifications.
1. Refer to nameplate and
correct.
b)Evaporator Assembly 1. Bearings or auger
worn out.
1. Replace bearings or
auger. See "V.F.1. Upper
Bearing Wear Check."
c) Bin Control 1. Bad contacts. 1. Check for continuity and
replace.
. Actuator does not
move freely.
. Clean actuator or replace
bin control assembly.
d)Safety Switch and
Relay
1. Switch misaligned,
contacts bad.
1. Check and correct or
replace.
e)Control Board 1. Erratic operation of
gear motor relay.
1. See "II.D.4. Control Board
Check Procedure."