Hoshizaki F-500BAJ Service Manual page 28

No Ice Production - Possible Cause
1. Control Board
See "II.C. Control Board Check."
2. Start Relay/Capacitor
3. Compressor
4. Fan Motor
5. Evaporator
6. Refrigerant Charge
7. Drain Valve
8. Water System
9. Evaporator Heater
(-C model)
1. Float Switch
See "II.E. Float Switch Check
and Cleaning."
2. Inlet Water Valve
3. Water Supply
4. Control Board
See "II.C. Control Board Check."
1. Bin Control
See "II.D. Bin Control Check."
2. Control Board
See "II.C. Control Board Check."
1. Control Board
See "II.C. Control Board Check."
2. Drain Valve
3. Control Switch
Freeze Cycle
a) Defective.
a) Defective.
a) Open motor windings.
b) Mechanical Failure.
a) Open motor windings.
b) Mechanical failure or fan blade binding.
a) Dirty.
b) Damaged or defective.
a) Low.
a) Dirty, leaking by.
a) Water leaks.
a) Defective.
Refill
a) Dirty/sticking.
b) Defective.
a) Screen or orifice clogged.
b) Defective.
a) Water supply off or improper water pressure (10 to 113 PSIG).
b) External water filters clogged.
a) Defective.
Shutdown
a) Proximity switch stuck closed.
b) Actuator paddle does not move freely.
a) Defective.
Drain Cycle
a) Defective.
a) Defective.
a) Defective.
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