Hoshizaki Troubleshooting Guide for Refrigerators

	PROBLEM		POSSIBLE CAUSE				REMEDY
		c)	Gear Motor Relay	1.	Coil winding opened.	1.	Replace.
				2.	Bad contacts.	2.	Check for continuity
							and replace.
		d)	Control Timer	1.	Broken.	1.	Replace.
			(Printed Circuit
			Board)
		e)	Gear Motor Protect	1.	Coil winding opened.	1.	Replace.
			Relay
				2.	Bad contacts.	2.	Check for continuity
							and replace.
[4]	Water has been	a)	Gear Motor Fuse	1.	Blown Fuse.	1.	See 3. [3]. Find out the
	supplied. Fan Motor		(Bussman GMD				cause and replace the
	starts, but		1.5A)				Fuse.
	Compressor and
	Gear Motor will not	b)	Thermal Protector	2.	Bad contacts.	2.	Check for continuity
	start.		(Gear Motor)				and replace.
[5]	Gear Motor starts,	a)	X2 Relay on Control	1.	Bad contacts.	1.	Check for continuity
	but Compressor will		Timer				and replace.
	not start or operates			2.	Coil winding opened.	2.	Replace Timer.
	intermittently
		b)	Starter	1.	Bad contacts.	1.	Check for continuity
							and replace.
				2.	Coil winding opened.	2.	Replace.
				3.	Loose connections.	3.	Tighten.
		c)	Start Capacitor or	1.	Defective.	1.	Replace.
			Run Capacitor
		d)	Compressor	1.	Loose connections.	1.	Tighten.
				2.	Motor winding	2.	Replace.
					opened or grounded.
				3.	Motor Protector	3.	Find out the cause of
					tripped.		overheat or
							overcurrent.
		e)	Power Supply	1.	Circuit Ampacity too	1.	Install a larger-sized
					low.		conductor.
[6]	Gear Motor and	a)	Pressure Switch	1.	Dirty Air Filter or	1.	Clean.
	Compressor start,				Condenser.
	but operate			2.	Ambient temperature	2.	Get cooler.
	intermittently				too warm.
				3.	Fan not rotating.	3.	See "3. [1] a) Fan
							Motor."
				4.	Refrigerant	4.	Recharge.
					overcharged.
				5.	Refrigerant line or	5.	Clean and replace
					components plugged.		drier.
				6.	Bad contacts.	6.	Check for continuity
							and replace.
				7.	Loose connections.	7.	Tighten.

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