Hoshizaki KM-1300SWH3 IV. Service Diagnosis No Ice Production, Problem Possible Cause Remedy

IV. Service Diagnosis

1. No Ice Production

Problem	Possible Cause				Remedy
[1] The icemaker will not	a)	Power Supply	1.	OFF position.	1.	Move to ON position.
start.
			2.	Loose connection.	2.	Tighten.
			3.	Bad contacts.	3.	Check for continuity and
						replace.
			4.	Voltage too high.	4.	Check and get
						recommended voltage.
	b)	Fuse (Inside fused	1.	Blown.	1.	Check for short circuit and
		disconnect, if any)				replace.
	c)	Control Switch	1.	OFF position.	1.	Move to ICE position.
			2.	Bad contacts.	2.	Check for continuity and
						replace.
	d)	Bin Control Thermostat	1.	Tripped with bin filled with	1.	Remove ice.
				ice.
			2.	Ambient temperature too	2.	Increase ambient
				cool.		temperature.
			3.	Set too warm.	3.	See "II.2.[d] Controls and
						Adjustments, 6) Bin
						Control."
			4.	Bulb out of position.	4.	Place in position.
			5.	Bad contacts or leaks in	5.	Check for continuity and
				bulb.		replace.
	e)	High Pressure Control	1.	Bad contacts.	1.	Check for continuity and
						replace.
	f)	Transformer	1.	Thermal fuse blown or coil	1.	Replace.
				winding opened.
	g)	Wiring to Controller	1.	Loose connections or	1.	Check for continuity and
		Board		open.		replace.
	h)	Thermistor	1.	Leads short-circuit or open	1.	See "II.2.[d] Controls and
				and high temperature		Adjustments, 1) Defrost
				safety operates.		Control."
	i)	Hot Gas Solenoid	1.	Continues to open in	1.	Check for power off in
		Valve		freeze cycle and high		freeze cycle and replace.
				temperature safety
				operates.

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