Hoshizaki DB-130H service manual IV. Service Diagnosis, Problem Possible Cause Remedy

IV. Service Diagnosis

Problem

Possible Cause

Remedy

[1] No ice dispensed.	a) Power Supply	1. "OFF" position.		1.	Move to "ON" position.
		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) Spout Switch	1. Bad contacts.		1.	Check for continuity and
					replace.
		2.	Loose connection.	2.	Tighten.
	d) Door Switch	1. Front panel is not in		1.	Place in position.
			position.
		2.	Actuating plate does not	2.	Check for continuity and
			push door switch.		adjust.
		3.	Bad contacts.	3.	Check for continuity and
					replace.
		4.	Loose connection.	4.	Tighten.
	e) Safety Switch	1.	Spout is not in position.	1.	Check for continuity and
					place in position.
		2.	Bad contacts.	2.	Check for continuity and
					replace.
		3.	Loose connection.	3.	Tighten.
	f) Gear Motor	1. Thermal protector is		1.	Allow to cool.
			tripped.
		2.	Gear motor winding	2.	Replace.
			opened.
		3.	Bearing worn out.	3.	Replace.
		4.	Wiring to gear motor.	4.	Check for loose connection
					or open circuit, and replace
					wiring as needed.
		5.	Defective capacitor.	5.	Replace.
		6.	Agitator rotates in	6.	Check leads and reverse the
			reverse direction.		connections.
	g) Solenoid	1. Solenoid winding open.		1.	Replace
		2.	Wiring to solenoid.	2.	Check for loose connection
					or open circuit, and replace
					wiring as needed.
		3.	Overload due to	3.	After tightening, apply
			loosening screws.		thread sealant to the parts.

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