Hoshizaki CUBELET ICEMAKER/DISPENSER DCM-750BAH-OS User Manual
Page 40

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Problem
Possible Cause
Remedy
[3] Ice purge cycle will
not start.
a) Water Control Relay
. Low water safety
circuit open
(bad contacts ).
. Replace.
b) Control Switch
. Bad contacts.
. Check for continuity and
replace.
c) Bin Control
. Open.
. Bin full, check for
continuity on proximity
switch.
d) Control Board
. Fails to operate gear
motor relay.
. See "II.D.4. Control Board
Check Procedure."
e) Gear Motor Fuse
. Blown.
. Check gear motor
amperage, bearing
wear (see "V.F.. Upper
Bearing Wear Check"),
and supply voltage.
f) Gear Motor Thermal
Protector
. Open.
. Check gear motor
bearings, supply voltage.
g) Gear Motor
. Open windings.
. Replace.
. Auger coupling broke. . Replace.
3. Locked bearings.
3. Replace.
[4] Freeze cycle will not
start (compressor).
a) Gear Motor Protect
Relay
. Open coil.
. Replace.
. Open contacts.
. Replace.
b) Control Board
. Defective.
. See "II.D.4. Control Board
Check Procedure."
c) Starter (Start Relay)
. Bad contacts.
. Check for continuity and
replace.
. Coil winding open.
. Replace.
3. Loose connections.
3. Tighten.
d) Start Capacitor or Run
Capacitor
. Defective.
. Replace.
e) Compressor
. Power supply not
within specifications.
. Refer to nameplate and
correct.
. Wiring to compressor. . Check for loose or open
connection, repair or
replace.
3. Defective.
3. Replace.
4. Compressor locked
and internal motor
protector tripped.
4. Replace.
[5] All components
run, but no ice is
produced.
a) Refrigerant
. Low charge.
. See "V.B. Service for
Refrigerant Lines."
. Refrigerant line or
component restricted.
. Remove the restriction or
component and replace
the drier.
3. Air or moisture
trapped.
3. Recover refrigerant,
replace drier, evacuate,
and recharge.
b) Expansion Valve
. Bulb loose.
. Secure bulb.
. Operating erratically.
. Check and replace.
c) Compressor
. Defective.
. Replace.