Hoshizaki DIM-30DE-2 Service Manual page 58

PROBLEM
[2] (Continued)
[3] Compressor
runs, but other
components
will not start.
[4] Fan motor will
not run.
[5] Water
continues to
be supplied in
freeze cycle.
[6] Water does not
circulate.
[7] All components
run, but no ice
is produced.
[8] Water pan will
not open.
[9] Water pan will
not close.
CHECK
f) Air filter,
condenser
a) Control circuit
a) Wiring
b) Actuator toggle
switch
c) Thermistor,
controller board
a) Water solenoid
valve
b) Controller board
a) Water supply line 1. Water pressure too low
b) Water solenoid
valve
c) Water system
d) Pump motor
e) Controller board
f) Discharge tube
a) Refrigerant
b) Compressor
c) Hot gas solenoid
valve
a) Wiring
b) Actuator motor,
run capacitor
c) Thermistor,
controller board
a) See [8] above.
b) Hot gas valve
POSSIBLE CAUSE
1. Clogged.
1. Loose connection or
broken wire.
1. Loose connection or
broken wire.
1. Defective.
1. See "II. CONTROLLER BOARD".
1. Diaphragm does not
close.
1. Defective.
and water level in water
tank too low.
1. Dirty mesh filter or orifice
and water level in water
tank too low.
1. Water leaks.
2. Clogged.
1. Motor winding opened.
2. Bearing worn out.
3. Wiring to pump motor.
4. Defective or bound
impeller.
1. Defective.
1. Clogged.
2. Out of position.
1. Undercharged.
2. Air or moisture trapped.
1. Defective valve.
1. Continues to open in
freeze cycle.
1. Loose connection or
broken wire.
1. Defective.
1. See "II. CONTROLLER BOARD".
1. Defective.
54
REMEDY
1. Clean.
1. Repair or replace.
1. Repair or replace.
1. Replace.
1. Check for water leaks with
ice dispenser OFF.
1. See "II. CONTROLLER
BOARD".
1. Check for recommended
pressure.
1. Clean.
1. Check connections for
water leaks, and repair.
2. Clean.
1. Replace.
2. Replace.
3. Check for loose connection
or open, and replace.
4. Replace and clean.
1. See "II. CONTROLLER
BOARD".
1. Clean.
2. Place in position.
1. Check for leaks and
recharge.
2. Replace drier, and
recharge.
1. Replace compressor.
1. Check and replace.
1. Repair or replace.
1. Replace.
1. Replace.