Hoshizaki dcm-75ibah service manual No Ice Production Possible Cause, Shutdown

No Ice Production - Possible Cause

	Freeze Cycle
1. Control Board	a) Defective.
2. Start Relay	a) Defective.
3. Start Capacitor or Run Capacitor	a) Defective.
4. Compressor	a) External protector.
	b) Motor winding.
	c) Mechanical failure.
5. High-Pressure Switch Activates	a) Dirty condenser.
	b) Ambient temperature too warm.
	c) Fan motor not operating.
	d) Refrigerant overcharged.
	e) Defective.
	f) Refrigerant lines or components restricted.
6. Fan Motor	a) Capacitor defective.
	b) Motor winding.
	c) Bearing worn out or locked rotor.
7. Evaporator	a) Dirty.
	b) Damaged or defective.
8. Thermostatic Expansion Valve	a) Bulb loose.
(TXV)
	b) Operating erratically.
9. Refrigerant Charge	a) Low.
10. Drain Valve	a) Dirty, leaking by.
	b) Defective coil.
	c) Defective control board.
11. Water System	a) Water leaks.
	Refill
1. Water Supply	a) Off.
2. Control Board	a) No power to float switch or not reading float switch condition.
	b) No power to inlet water valve.
3. Float Switch	a) Float does not move freely.
	b) Defective.
4. Inlet Water Valve	a) Clogged or defective.
	Shutdown
1. Bin Control	a) Actuator paddle sticking open.
	b) Proximity switch defective.
2. Control Board	a) Defective.

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