Hoshizaki KM-901MAH, KM-901MWH, KM-901MRH/3 service manual Other

Problem	Possible Cause		Remedy
[2] Cloudy or irregular	a) Evaporator	1. Frozen up.	1. See chart 2.
cubes.
		2. Scaled up.	2. Clean
		3. Damaged.	3. Replace.
	b) Water System	1. Water supply line too	1. Increase water line size.
		small; requires 3/8"
		OD line dedicated per
		machine.
		2. Water filter clogged or	2. Replace filter or install a
		flow rate too small.	higher flow rate filter.
		3. High hardness or	3. Install a water softener or
		contains impurities.	filter.
	c) Spray Guide	1. Dirty.	1. Clean.

5. Other

Problem	Possible Cause		Remedy
[1] Icemaker will not stop	a) Thermostatic Bin	1. Set too cold.	1. See "IV.C.1. Thermostatic
when bin is filled with	Control		Bin Control Check."
ice.
		2. Defective.	2. Replace.
	b) Mechanical Bin Control	1. Movement restricted.	1. Check and free.
		2. Loose connection.	2. Check and reconnect.
		3. Defective	3. See "IV.C.2. Mechanical
			Bin Control Check and
			Cleaning."
	c) Control Board ("G"	1. Defective.	1. See "IV.B. Control Board
	control board with		Check."
	mechanical bin control)
[2] Abnormal noise.	a) Pump Motor	1. Bearings worn out.	1. Replace.
	b) Fan Motor (except	1. Bearings worn out.	1. Replace.
	water-cooled model)
		2. Fan blade deformed.	2. Replace.
		3. Fan blade does not	3. Replace.
		move freely.
	c) Compressor	1. Bearings worn out or	1. Replace.
		cylinder valve broken.
		2. Mounting pad out of	2. Reinstall.
		position.
	d) Refrigerant Lines	1. Rub or touch other	1. Reposition.
		lines or surfaces.
[3]Ice in storage bin	a) Drain Line(s)	1. Plugged.	1. Clean.
often melts.
	b) Icemaker and Bin	1. Drains not run	1. Separate the drain lines.
		separately.
	c) Ice Cube Guide	1. Out of position.	1. Place in position.
		Circulated water falls
		into bin.

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