Diagnostic Charts; No Ice Production - Hoshizaki CUBELET ICEMAKER/DISPENSER DCM-750BAH Service Manual

C. Diagnostic Charts

1. No Ice Production

Problem
[] The icemaker will not
start. (Fill Cycle)
Possible Cause
a) Power Supply
b) Water Supply
c) Power Switch
(Control Box)
d) Door Switch
e) Power Protect Relay
f) Transformer
g) Fuses ()
h) Control Switch
i) Water Control Relay
j) Inlet Water Valve
k) Float Switch
l) Bin Control
. Off, blown fuse, or
tripped breaker.
. Loose connection.
3. Bad contacts.
4. Not within
specifications.
. Water supply off or
pressure too low.
. "OFF" position.
. Bad contacts.
. Door switch not
engaged.
. Bad contacts.
. Voltage not within
specifications.
. Bad contacts.
. Coil winding open.
. Blown.
. "OFF" or "DRAIN"
position.
. Bad contacts.
. Bad contacts.
. Coil winding open.
. Mesh filter or orifice
clogged.
. Coil winding open.
3. Wiring to inlet water
valve.
. Bad contacts.
. Float does not move
freely.
. Open.
. Actuator sticking.
3. Proximity switch open. 3. Replace.
38
Remedy
. Turn on, replace, or reset.
. Tighten.
3. Check for continuity and
replace.
4. Refer to nameplate and
correct.
. Check and get
recommended pressure.
. Move to "ON" position.
. Check for continuity and
replace.
. Engage door switch.
. Check for continuity and
replace.
. Refer to nameplate and
correct.
. Check for continuity and
replace.
. Replace.
. Check for short circuit and
replace.
. Move to "ICE" position.
. Check for continuity and
replace.
. Check for continuity and
replace.
. Replace.
. Clean.
. Replace.
3. Check for loose or open
connection. Repair or
replace.
. Check for continuity and
replace.
. Clean or replace.
. Bin full, check for
continuity on proximity
switch.
. Adjust or replace.