Hoshizaki HWR68A(-D), HWR40A(-D), HUR96A(-D), HUR68A(-D), HUR40A(-D) Problem Possible Cause Remedy

Problem	Possible Cause		Remedy
[9] Defrost cycle	a)Defrost Thermistor	1. Defective.	1. Replace.
lasts too long.	b)Control Board	1. Defective.	1. Replace.
	c) Defrost	1. Not enough defrosts	1. Factory default is once every
		occurring per day.	6 hours. If coil is frosting too
		Operation in humid	much, can shorten defrost
		conditions.	interval.
	d)Defrost Heater	1. Defective.	1. Replace heaters.
	e)Safety Defrost	1. Defective, turning off	1. Replace safety defrost
	Thermostat	heaters prematurely,	thermostat.
		or fused open.
[10]Condensate	a)Cabinet Contents	1. Loading of large	1. Cover product with plastic
water overflow.		volumes of warm,	wrap.
		moist, uncovered
		product.
	b)Location of Unit	1. Unit located near high	1. Relocate.
		humidity source such
		as fryer, steamer, etc.
	c) Seals	1. Poor sealing around	1. Adjust or replace.
		evaporator, door
		gaskets.
	d)Environment	1. Extreme environment	1. Adjust conditions.
		and door-opening
		conditions.
[11]Abnormal Noise	a)Fasteners	1. Loose fasteners allow	1. Tighten fasteners.
		vibration of part.
	b)Compressor	1. Problem with mount.	1. Properly mount compressor.
			Replace any missing
			grommets.
		2. Floodback to	2. Check for signs of floodback
		compressor.	to compressor. Evacuate and
			recharge if necessary.
		3. Defective.	3. Replace.
	c) Fan	1. Fan blade loose.	1. Adjust and tighten.
		2. Defective motor.	2. Replace.
	d) Relay	1. Chattering.	1. Replace.

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