LG Electronics LF300CP(LP-C303R20), LF480CE(LP-C483TA0) service manual Only blowers do not work

PACKAGE AIR CONDITIONER VOLTAGE LIMITS

NAME PLATE RATING	MINIMUM	MAXIMUM
380 V	342 V	418 V
220 V	198 V	242 V
380 - 415 V	342 V	456 V

No cooling and heating operation performed

	WHAT TROUBLED	COMPLAINTS	HOW TO CHECK	REMEDY
Other parts than the unit		Electric supply interrupted	Measure it with a tester in	Repair a switch box and
		Defective power wiring Cut	case that the same
		of power fuse	power source is supplied	is relative instrument.
			to other equipment than	Replacement of fuse
			the unit, what and where	Request a power
			trouble can be discovered
				supplier to repair.
			by checking the operation
			of other equipment.
		Too low voltage	Measure it with a tester.	Check the power source.
				Use a thick cable if
				necessary.
Magnetic switch for		Control point is on	Make short-circuit, then	Replace it if necessary.
compressor & fan motor		condition of "OFF" due to	measure it with a tester.
		trouble.
Operating switch		Troubled or defective	Check it with the eyes or	Repair or replace it.
		contactor	tester.
Protection devices		Opened the contact point	Check it with the eyes or	Discover the trouble
		with trouble	tester.	cause and push the rest
				button.

2) Only blowers do not work

WHAT TROUBLED	COMPLAINTS	HOW TO CHECK	REMEDY
Air volume change over	Troubled or defective	Check it with the eyes or a	Repair or replace it.
switch	contact point	tester
Capacitor	Defected	Check it with a tester.	Replace it.

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