Scotsman Ice SCN60 Service, Service Diagnosis, Problem, Likely Cause, Probable Solution

SCN60

Service

Service Diagnosis

Problem	Likely Cause	Probable Solution
		With power on and Ice Making light on,
		check connector, if secure remove
	Ice level sensor failure	connector and jump the two middle pins
		at J9 on the controller together. Unit
		should start. If it does, replace the
		sensor, if not, replace the controller.
No ice, continued		Restart unit. Check for power to
	Auger motor on but compressor and fan	compressor and/or fan motor. If none,
		replace controller.
	motor are off.
		Ice Making light blinking. Condition is
		temporary, unit has been switched off.
	Ice making light on, nothing operating.	May be in a restart window. See page 7.
	Dirty condenser	Vacuum condenser fins
	Air flow blocked	Check for vent blockage
	Gravity drain restricted	Check drain, clear of restriction. Ensure
		it has a proper air vent.
Not keeping up, makes	Pump drain slow	Check for proper pump switch operation
ice but less than normal
		and drainage
	Scale on evaporator and auger	Clean with scale remover. See
		Maintenance section.
	Torn door gasket, door does not close	Check gasket and door fit.
	tightly
	Panels vibrating	Check panels, adjust fit, tighten screws
	Fan blade rubbing	Check fan blade for foreign object.
		Remove same. Check alignment.
Makes ice but also an	Scale on evaporator and auger	Clean with scale remover. See
		Maintenance section.
unusual noise
	Drain pump cuts in and out.	Check valve failure, replace.
	Tubes rubbing	Check for tube contact to panel or
		another tube.
	Unit in very cold conditions	Do not operate unit below limits
Water Leak	Drain tube off or cracked	Check/repair drain tube
	Water inlet connection loose	Check/tighten connection
Water flows continuously	Float valve not shutting off	Check float, if stuck free it. If leaking by
		when full, replace the valve.

May 2011 Page 10