EdgeStar AP12000HS owner manual Troubleshooting, Issue Possible Cause Solution

NOTE: If the ambient temperature is above 90°F the unit may not blow cold air.

TIP: Run the unit before it is needed. For example, run the unit in the morning before the area gets hot, and continue to run the unit all day long in order to maintain a low temperature.

Troubleshooting continued

Issue	Possible Cause	Solution
My air conditioner is	Unit is not operating in	Set the unit to be in
not cooling at all	cooling mode	cooling mode, and
		lower the set
		temperature (pg. 11)
	The compressor is not	The compressor may
	on	take up to 3 minutes to
		turn on, or longer if it is
		too warm
	The ambient	Lower the room
	temperature is too high	temperature to be
		below 90°F degrees
	The filter may be dusty	Clean the filters.
	or blocked	(pg. 15)
	Blocked exhaust port	Remove any
		obstructions in the
		exhaust hose and port
My air conditioner	The unit is not vented	The unit must be
blows cold air, but		vented. (pg. 4)
does not lower the	The area of the room	Minimize the size of
room temperature	is too large	the area to be cooled,
		i.e. adding a drop
		ceiling. Use more than
		one unit to cool the
		area, or use a larger
		unit
	Open windows and	Close any open doors
	doors	and windows
	Too many heat	Remove or shut off
	sources	additional heat
		sources such as radio
		equipment, servers,
		etc.
	The room/garage may	Properly insulate the
	be inadequately	room to be cooled, i.e.
	insulated	using fiberglass
	The ambient	The unit may not work
	temperature is too high	if the room
		temperature is above
		90°F
	Direct sunlight is	Close curtains or pull
	heating the room	down blinds, and
		minimize the direct
		sunlight into the room
	The filter may be dusty	Clean the filter and
	or blocked	replace it if needed
	Dirty condenser coils	Carefully vacuum the
		coils clean
	Obstructed air intake	Remove anything
	or exhaust ports	blocking the ports

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