Hoshizaki DKM-500BAH service manual Problem Possible Cause Remedy

Problem	Possible Cause			Remedy
			4. Refrigerant	4. Recharge.
			overcharged.
			5. Fan not operating.	5. See chart 1. a) [6]
			6. Refrigerant line or	6. Clean and replace drier.
			components plugged.
	f)	Transformer	1. Coil winding opened	1. Replace.
			or shorted.
	g) Wiring to Control Board		1. Loose connections or	1. Check for continuity and
			open.	replace.
	h) Thermistor		1. Leads shorted or	1. See "II.C.3. Controls and
			opened and high	Adjustments, b) Harvest
			temperature or harvest	Control."
			backup timer safety
			operates. (1 beep or 2
			beep alarm)
	i)	Hot Gas Valve	1. Continues to open	1. Check for hot gas valve
			in freeze cycle and	stuck open and replace.
			freeze timer safety
			operates. (3 beep
			alarm)
	j)	Water Supply Line	1. Water supply off and	1. Check and get
			water supply cycle	recommended pressure.
			does not finish.
	k) Inlet Water Valve		1. Mesh filter or orifice	1. Clean.
			gets clogged and
			water supply cycle
			does not finish.
			2. Coil winding opened.	2. Replace.
			3. Wiring to water valve.	3. Check for loose
				connection or open, and
				replace.
	l)	Control Board	1. Defective or in alarm.	1. See "II.C.5. Control Board
				Check Procedure."
	m)Control Switch		1. SERVICE position.	1. Move to ICE position.
			2. Bad contacts.	2. Check and replace.
[2] Water continues to	a) Float Switch		1. Connector	1. Place in position.
be supplied, and the			disconnected.
icemaker will not
			2. Leads opened or	2. Check and replace.
start.
			defective switch.
			3. Float does not move	3. Clean or replace.
			freely.
	b) Control Board		1. Defective.	1. See "II.C.5. Control Board
				Check Procedure."
[3] Compressor will	a) Magnetic Contactor		1. Bad contacts.	1. Check for continuity and
not start or stops				replace.
operating.
			2. Coil winding opened.	2. Replace.
	b) Start Capacitor or Run		1. Defective.	1. Replace.
		Capacitor

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