Service Diagnosis; Ice Production - Hoshizaki DIM-40DE-HC Service Manual

VI. SERVICE DIAGNOSIS
1. NO ICE PRODUCTION
PROBLEM
[1] The ice
dispenser will
not start.
[2] Compressor
will not start
or operates
intermittently.
CHECK
a) Power source
b) Power cord
c) Fuse
d) Bin control
e) Transformer
f) Wiring to
controller board
g) Thermistor
h) Hot gas solenoid
valve
i) Water solenoid
valve
j) Controller board
a) Overload
protector
b) Starter
c) Start capacitor or
run capacitor
d) Power relay
e) Compressor
POSSIBLE CAUSE
1. OFF position.
2. Loose connections.
3. Bad contacts.
1. Loose connection.
2. Open circuit - damaged.
1. Blown out.
1. Tripped with bin filled with
ice.
2. Out of position.
3. Fused contacts.
1. Coil winding opened.
1. Loose connections or
open.
1. Leads short-circuit
or open and high
temperature safety
(backup timer) operates.
1. Continues to open in
freeze cycle and high
temperature safety
(backup timer) operates.
1. Mesh filter or orifice gets
clogged and water supply
cycle does not finish.
2. Coil winding opened.
3. Wiring to water valve.
1. Defective.
1. Bad contacts.
2. Voltage too low.
3. Refrigerant overcharged
or undercharged.
1. Defective.
1. Defective.
1. Bad contacts.
2. Coil winding opened.
1. Wiring to compressor.
2. Defective.
48
REMEDY
1. Move to ON position.
2. Tighten.
3. Check for continuity and
replace.
1. Tighten.
2. Repair or replace.
1. Replace.
1. Remove ice.
2. Place in position.
3. Check for continuity and
replace.
1. Replace.
1. Check for continuity and
repair or replace.
1. See "II. 1. [c]
BEFORE CHECKING
CONTROLLER BOARD".
1. Check for power OFF in
freeze cycle and replace.
1. Clean.
2. Replace.
3. Check for loose connection
or open and replace.
1. See "II. CONTROLLER
BOARD".
1. Check for continuity and
replace.
2. Check for recommended
voltage.
3. Recharge.
1. Replace.
1. Replace.
1. Check for continuity and
replace.
2. Replace.
1. Check for loose connection
or open, and repair or
replace.
2. Replace.