Hoshizaki DKM-500BAH service manual Problem Possible Cause Remedy

Problem	Possible Cause		Remedy
	c) Internal Overload	1. Loose terminal.	1. Tighten or replace.
	Protector Open (check
	1 through 3 to the right	2. Voltage.	2. Check and correct.
	and d through f below)
		3. Dirty condenser.	3. Clean.
	d) Starter	1. Bad contacts.	1. Check and replace.
		2. Coil winding opened.	2. Replace.
	e) Compressor	1. Wiring to compressor.	1. Check for loose
			connection or open, and
			replace.
		2. Defective.	2. Replace.
		3. Protector tripped.	3. Reduce temperature.
	f) Control Board	1. No power to contactor.	1. See "II.C.5. Control Board
			Check Procedure."
[4] Water continues to	a) Inlet Water Valve	1. Diaphragm does not	1. Check for water leaks with
be supplied in freeze		close.	icemaker off.
cycle.
	b) Control Board	1. Defective.	1. See "II.C.5. Control Board
			Check Procedure."
[5] No water comes from	a) Water Supply Line	1. Water pressure too	1. Check and get
spray tubes. Water		low and water level in	recommended pressure.
pump will not start, or		water tank too low.
freeze cycle time is
	b) Inlet Water Valve	1. Dirty mesh filter or	1. Clean.
too short.
		orifice and water level
		in water tank too low.
	c) Water System	1. Water leaks.	1. Check connections for
			water leaks, and replace.
		2. Clogged.	2. Clean.
	d) Pump Motor	1. Motor winding opened.	1. Replace.
		2. Bearing worn out.	2. Replace.
		3. Wiring to pump motor.	3. Check for loose
			connection or open, and
			replace.
		4. Defective capacitor.	4. Replace.
		5. Defective or bound	5. Replace and clean.
		impeller.
	e) Control Board	1. Defective.	1. See "II.C.5. Control Board
			Check Procedure."
[6] Fan motor will	a) Fan Motor	1. Motor winding opened.	1. Replace.
not start, or is not
operating.		2. Bearing worn out.	2. Replace.
		3. Wiring to fan motor.	3. Check for loose
			connection or open, and
			replace.
		4. Defective capacitor.	4. Replace.
		5. Fan blade bound.	5. Check and replace.

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