Manitowoc Ice S manual Checklist, Problem Possible Cause To Correct

Section 5 Before Calling For Service

Section 5

Before Calling For Service

Checklist

If a problem arises during operation of your ice machine, follow the checklist below before calling service. Routine adjustments and maintenance procedures are not covered by the warranty.

Problem	Possible Cause	To Correct
Ice machine does not operate.	No electrical power to the ice machine	Replace the fuse/reset the breaker/turn
	and/or condensing unit.	on the main switch.
	High pressure cutout tripping.	Clean condenser coil. (See Section 4)
	ICE/OFF/CLEAN toggle switch set	Move the toggle switch to the ICE
	improperly.	position.
	Water curtain stuck open.	Water curtain must be installed and
		swinging freely. (See Section 4)
	Remote receiver service valve and/or	Open the valve(s). (See Section 2)
	Liquid/suction line shut off valves are
	closed.
Ice machine stops, and can be restarted	Safety limit feature stopping the ice	Refer to “Safety Limit Feature” on the
by moving the toggle switch to OFF and	machine.	next page.
back to ICE.
Ice machine does not release ice or is	Ice machine is dirty.	Clean and sanitize the ice machine.
slow to harvest.		(See Section 4)
	Ice machine is not level.	Level the ice machine. (See Section 2)
	Low air temperature around ice machine	Air temperature must be at least 35°F
	head section.	(1.6°C).
	Fan cycling control does not de-energize	Verify pressure is below cut-out setpoint,
	condenser fan motor.	replace fan cycling control.
Ice machine does not cycle into harvest	The six-minute freeze time lock-in has	Wait for the freeze lock-in to expire.
mode.	not expired yet.
	Ice thickness probe is dirty.	Clean and sanitize the ice machine.
		(See Section 4)
	Ice thickness probe is disconnected.	Connect the wire.
	Ice thickness probe is out of adjustment.	Adjust the ice thickness probe.
		(See Section 3)
	Uneven ice fill (thin at the top of	Verify sufficient water level in sump
	evaporator).	trough. Contact a qualified service
		company to check refrigeration system.
Ice quality is poor (soft or not clear).	Poor incoming water quality.	Contact a qualified service company to
		test the quality of the incoming water and
		make appropriate filter
		recommendations.
	Water filtration is poor.	Replace the filter.
	Ice machine is dirty.	Clean and sanitize the ice machine.
		(See Section 4)
	Water dump valve is not working.	Disassemble and clean the water dump
		valve. (See Section 4)
	Water softener is working improperly (if	Repair the water softener.
	applicable).

Part Number 80-1620-3 5-1