Hoshizaki DCM-500BWH-OS service manual Other, Problem, Possible Cause, Remedy

3. Other

Problem	Possible Cause		Remedy
[1] Icemaker will not stop	a)Bin Control	1. Actuator sticking.	1. Adjust or replace.
when bin is filled with
		2. Proximity switch	2. Replace.
ice.
		closed.
[2] Abnormal noise.	a)Fan Motor (except	1. Bearing worn out.	1. Replace.
	water-cooled model)
		2. Fan blade deformed.	2. Replace fan blade.
		3. Fan blade does not	3. Replace.
		move freely.
	b)Compressor	1. Bearings worn out, or	1. Replace.
		cylinder valve broken.
		2. Mounting pad out of	2. Reinstall.
		position.
	c) Refrigerant Lines	1. Rub or touch other	1. Reposition.
		lines or surfaces.
	d)Auger	1. Bearings or auger	1. Replace bearings or
		worn out.	auger. See "V.F. Removal
			and Replacement of
			Evaporator Assembly
			Components."
	e)Gear Motor	1. Bearing or gear worn	1. Replace.
		out / damaged.
	f) Evaporator	1. Scale on inside wall	1. Use "SCALE AWAY" or
		of evaporator freezing	"LIME-A-WAY" solution to
		cylinder.	clean periodically.
			See "VI. A. Cleaning and
			Sanitizing Instructions." If
			the water is found hard by
			testing, install a softener.
		2. Evaporator defective.	2. Replace.
[3] Overflow from	a)Water Supply	1. Water pressure too	1. Install a pressure reducing
reservoir (water does		high.	valve.
not stop).
	b)Inlet Water Valve	1. Diaphragm does not	1. Clean or replace.
		close.
	c) Float Switch	1. Bad contacts.	1. Check for continuity and
			replace.
	d)Water Control Relay	1. Bad contacts.	1. Replace
[4] Gear motor overload	a)Power Supply	1. Not within	1. Refer to nameplate and
protector operates		specifications.	correct.
frequently or fuse
	b)Evaporator Assembly	1. Bearings or auger	1. Replace bearings or
blows frequently.
		worn out.	auger. See "V.F.1. Upper
			Bearing Wear Check."
	c) Bin Control	1. Bad contacts.	1. Check for continuity and
			replace.
		2. Actuator does not	2. Clean actuator or replace
		move freely.	bin control assembly.
	d)Safety Switch and	1. Switch misaligned,	1. Check and correct or
	Relay	contacts bad.	replace.
	e)Control Board	1. Erratic operation of	1. See "II.D.4. Control Board
		gear motor relay.	Check Procedure."

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