Hoshizaki KM-201BAH, KM-260BAH, KM-260BWH, KM-201BWH service manual Board Check

PROBLEM	POSSIBLE CAUSE				REMEDY
[1] (Continued)	l) Control Board	1.	Defective.	1.	See “II. 3. [d] CONTROL
					BOARD CHECK
					PROCEDURE”.
[2] Water	a) Float Switch	1.	Connector	1.	Reconnect.
continues to			disconnected.
be supplied,		2.	Leads opened or	2.	Check and replace.
and the			defective switch.
icemaker will		3.	Float does not move	3.	Clean or replace.
not start.			freely.
	b) Control Board	1.	Defective.	1.	Replace.
[3] Compressor	a) Control Switch	1.	WASH position.	1.	Move to ICE position.
will not start or		2.	Bad contacts.	2. Check and replace.
operates	b) High Pressure	1.	Dirty air filter or	1.	Clean.
intermittently.	Control		condenser.
		2.	Ambient temperature	2.	Reduce ambient
			too warm.		temperature.
		3.	Refrigerant	3.	Recharge.
			overcharged.
		4.	Fan not operating.	4.	See chart 2 - [6].
		5. Condenser water		5.	Check and get
			temperature too warm		recommended
			(water-cooled model).		temperature.
		6.	Refrigerant line or	6.	Clean and replace drier.
			components plugged.
	c) Overload	1.	Bad contacts.	1.	Check for continuity and
	Protector				replace.
		2.	Voltage too low.	2.	Increase voltage.
		3.	Refrigerant overcharged	3.	Recharge.
			or undercharged.
	d) Starter	1.	Bad contacts.	1.	Check and replace.
		2.	Coil winding opened.	2.	Replace.
	e) Start Capacitor	1. Defective.		1.	Replace.
	f) Power Relay	1.	Bad contacts.	1.	Check for continuity and
					replace.
		2.	Coil winding opened.	2.	Replace.
	g) Compressor	1.	Wiring to compressor.	1.	Check for loose
					connection or open, and
					replace.
		2.	Defective.	2.	Replace.
		3.	Protector tripped.	3.	Reduce temperature and
					verify cause.
	h) Control Board	1.	Defective.	1.	See “II. 3. [d] CONTROL
					BOARD CHECK
					PROCEDURE”.
	i) Condenser, Air	1.	Clogged with dirt and	1.	Clean and unclog.
	Filter		dust.
	j) Water regulator	1.	Set too high.	1.	Adjust lower.
	(water-cooled	2.	Clogged or defective.	2. Clean or replace.
	model)

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