Hoshizaki KM-1301SWH/3, KM-1301SAH/3, KM-1301SRH/3 service manual Problem Possible Cause Remedy

Problem	Possible Cause		Remedy
[3] Compressor will	a) Magnetic Contactor	1. Bad contacts.	1. Check for continuity and
not start or stops			replace.
operating.
		2. Coil winding open.	2. Replace.
	b) Start Capacitor or Run	1. Defective.	1. Replace.
	Capacitor
	c) Internal Overload	1. Loose terminal.	1. Tighten or replace.
	Protector Open (check
		2. Voltage.	2. Check and correct.
	1 through 3 to the right
		3. Dirty condenser.	3. Clean.
	and d through f below)
	d) Starter	1. Bad contacts.	1. Check and replace.
		2. Coil winding open.	2. Replace.
	e) Compressor	1. Power supply not	1. Refer to nameplate and
		within specifications.	correct.
		2. Wiring to compressor.	2. Check for loose connection
			or open, and replace.
		3. Defective.	3. Replace.
		4. Protector tripped.	4. Reduce temperature.
	f) Control Board	1. No power to contactor.	1. See "IV.B. Control Board
			Check."
[4] Water continues to	a) Water Pressure	1. Too high.	1. Reduce.
be supplied in freeze	b) Inlet Water Valve	1. Diaphragm does not	1. Check for water leaks with
cycle.		close.	icemaker off.
	c) Control Board	1. Defective.	1. See "IV.B. Control Board
			Check."
[5] Water pump will not	a) Pump Motor	1. Motor winding open.	1. Replace.
start.
		2. Bearing worn out.	2. Replace.
		3. Wiring to pump motor.	3. Check for loose connection
			or open, and replace.
		4. Defective capacitor.	4. Replace.
		5. Defective or bound	5. Replace and clean.
		impeller.
		6. Mechanical seal worn	6. Check and replace.
		out.
	b) Control Board	1. Defective.	1. See "IV.B. Control Board
			Check."
	c) Control Switch	1. Bad contacts.	1. Replace.
[6] Freeze cycle time is	a) Pump-Out Check Valve	1. Leaking by.	1. Clean or replace.
too short.
	b) Float Switch	1. Dirty or erratic	1. Clean or replace. See "IV.
		operation.	D. Float Switch Check and
			Cleaning."
	c) Control Board	1. Defective.	1. See "IV.B. Control Board
			Check."
	d) Water System	1. Water leaks.	1. Check connections for
			water leaks, and replace.

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