Hoshizaki KM-1300SAH3, KM-1300SWH3, KM-1300SRH3 Low Ice Production, Abnormal Ice, Other

3. Low Ice Production

Problem		Possible Cause		Remedy
[1]	Freeze cycle time is	a) See chart 1.[3] and check high pressure controller and water regulator.
	long.
		b)	See chart 2.[1] and check float switch, water solenoid valve and controller board.
[2]	Harvest cycle time is	a)	See chart 2.[2] and check evaporator, water supply line, water filter system, water
	long.		solenoid valve, ambient and/or water temperature, line valve, thermistor, and
			controller board.

4. Abnormal Ice

Problem	Possible Cause			Remedy
[1] Small cubes.	a) Ice Cube Guide	1.	Out of position. Circulated	1.	Place in position.
			water falls into bin.
	b) See chart 1.[5] and check water supply line, water solenoid valve, water system,
	pump motor, and controller board.
	c) Pump Out Check	1.	Dirty.	1.	Clean.
	Valve
[2] Cloudy or irregular	a) See chart 2.[1] and 2.[3], and check float switch, water solenoid valve, controller
cubes.	board, spray tubes, water system, refrigerant charge, and expansion valve.
	b) Spray Guide	1.	Dirty.	1.	Clean.
	c) Water Quality	1.	High hardness or contains	1.	Install a water softener or
			impurities.		filter.

5. Other

Problem	Possible Cause			Remedy
[1] Icemaker will not	a) Bin Control Thermostat	1.	Set too cold.	1.	Adjust warmer.
stop when bin is filled
		2.	Defective.	2.	Replace.
with ice.
[2] Abnormal noise.	a) Pump Motor	1.	Bearings worn out.	1.	Replace.
	b) Fan Motor	1.	Bearings worn out.	1.	Replace.
		2.	Fan blade deformed.	2.	Replace fan blade.
		3.	Fan blade does not move	3.	Replace.
			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 lines or	1.	Replace.
			surfaces.
[3] Ice in storage bin	a) Bin Drain	1.	Plugged.	1.	Clean.
often melts.
	b) Icemker and Bin	1.	Drains not run separately.	1.	Separate the drain lines.

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