Manitowoc Ice QM20 service manual Before Calling for Service, Checklist, Section

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 for service.

Problem	Possible Cause	To Correct
Ice machine does not	No electrical power to the ice	Replace the fuse/reset the
operate.	machine.	breaker/turn on the main switch.
	Toggle switch set improperly.	Move the toggle switch to the ON
		position.
	Low air temperature around ice	Air temperature must be at least
	machine.	10°C (50°F).
Ice machine does not release	Ice machine is dirty.	Clean and sanitize the ice machine.
ice or is slow to harvest.		See pages 4-3 and 4-4.
	Ice machine is not level.	Level the ice machine.
		See page 2-2.
	Low air temperature around ice	Air temperature must be at least
	machine (air-cooled models).	10°C (50°F).
Ice quality is poor (soft or not	Poor incoming water quality.	Contact a qualified service
clear).		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 pages 4-3 and 4-4.
	Water inlet valve filter screen is dirty.	Remove the water inlet valve and
		clean the filter screen. See page 4-
		6.
	Water softener is working improperly	Repair the water softener.
	(if applicable).
		Continued on next page...

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