C. diagnostic charts, No ice production – Hoshizaki CUBELET ICEMAKER/DISPENSER DCM-750BAH-OS User Manual
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C. Diagnostic Charts
1. No Ice Production
Problem
Possible Cause
Remedy
[] The icemaker will not
start. (Fill Cycle)
a) Power Supply
. Off, blown fuse, or
tripped breaker.
. Turn on, replace, or reset.
. Loose connection.
. Tighten.
3. Bad contacts.
3. Check for continuity and
replace.
4. Not within
specifications.
4. Refer to nameplate and
correct.
b) Water Supply
. Water supply off or
pressure too low.
. Check and get
recommended pressure.
c) Power Switch
(Control Box)
. "OFF" position.
. Move to "ON" position.
. Bad contacts.
. Check for continuity and
replace.
d) Door Switch
. Door switch not
engaged.
. Engage door switch.
. Bad contacts.
. Check for continuity and
replace.
e) Power Protect Relay
. Voltage not within
specifications.
. Refer to nameplate and
correct.
. Bad contacts.
. Check for continuity and
replace.
f) Transformer
. Coil winding open.
. Replace.
g) Fuses ()
. Blown.
. Check for short circuit and
replace.
h) Control Switch
. "OFF" or "DRAIN"
position.
. Move to "ICE" position.
. Bad contacts.
. Check for continuity and
replace.
i) Water Control Relay
. Bad contacts.
. Check for continuity and
replace.
. Coil winding open.
. Replace.
j) Inlet Water Valve
. Mesh filter or orifice
clogged.
. Clean.
. Coil winding open.
. Replace.
3. Wiring to inlet water
valve.
3. Check for loose or open
connection. Repair or
replace.
k) Float Switch
. Bad contacts.
. Check for continuity and
replace.
. Float does not move
freely.
. Clean or replace.
l) Bin Control
. Open.
. Bin full, check for
continuity on proximity
switch.
. Actuator sticking.
. Adjust or replace.
3. Proximity switch open. 3. Replace.