Other - Hoshizaki DCM-500BAH Service Manual

3. Other

Problem
[1] Icemaker will not stop
when bin is filled with
ice.
[] Abnormal noise.
[3] Overflow from
reservoir (water does
not stop).
[4] Gear motor overload
protector operates
frequently or fuse
blows frequently.
Possible Cause
a)Bin Control
a)Fan Motor (except
water-cooled model)
b)Compressor
c) Refrigerant Lines
d)Auger
e)Gear Motor
f) Evaporator
a)Water Supply
b)Inlet Water Valve
c) Float Switch
d)Water Control Relay
a)Power Supply
b)Evaporator Assembly
c) Bin Control
d)Safety Switch and
Relay
e)Control Board
1. Actuator sticking.
. Proximity switch
closed.
1. Bearing worn out.
. Fan blade deformed.
3. Fan blade does not
move freely.
1. Bearings worn out, or
cylinder valve broken.
. Mounting pad out of
position.
1. Rub or touch other
lines or surfaces.
1. Bearings or auger
worn out.
1. Bearing or gear worn
out / damaged.
1. Scale on inside wall
of evaporator freezing
cylinder.
. Evaporator defective. . Replace.
1. Water pressure too
high.
1. Diaphragm does not
close.
1. Bad contacts.
1. Bad contacts.
1. Not within
specifications.
1. Bearings or auger
worn out.
1. Bad contacts.
. Actuator does not
move freely.
1. Switch misaligned,
contacts bad.
1. Erratic operation of
gear motor relay.
4
Remedy
1. Adjust or replace.
. Replace.
1. Replace.
. Replace fan blade.
3. Replace.
1. Replace.
. Reinstall.
1. Reposition.
1. Replace bearings or
auger. See "V.F. Removal
and Replacement of
Evaporator Assembly
Components."
1. Replace.
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.
1. Install a pressure reducing
valve.
1. Clean or replace.
1. Check for continuity and
replace.
1. Replace
1. Refer to nameplate and
correct.
1. Replace bearings or
auger. See "V.F.1. Upper
Bearing Wear Check."
1. Check for continuity and
replace.
. Clean actuator or replace
bin control assembly.
1. Check and correct or
replace.
1. See "II.D.4. Control Board
Check Procedure."