Sharp AE-X9FR, AY-XP12FR, AY-XP7FR, AY-XP9FR, AE-X7FR, AE-X12FR service manual Main

									AYXP7FR
Status of	Indication	Malfunction		Content of diagnosis		Inspection location/method			Remedy
indoor/	by LED1	No. dis-
outdoor	on out-	played on
units	door unit	main unit
	*2	display sec-
		tion *1
		Main	Sub-	Main category	Sub-category
		cate-	cate-
		gory	gory
Indoor/	11	11	-0	Outdoor unit DC	Outdoor unit DC fan	(1)	Check connector CN3 of	(1)	Correct the installa-
outdoor	times			fan	rotation error		the outdoor unit DC fan		tion.
units in							motor for secure installa-
complete							tion.
shutdown						(2)	Check the outdoor unit fan	(2)	Replace the outdoor
							motor for proper rotation.		unit fan motor.
						(3)	Check fuse FU3.	(3)	Replace the outdoor
									unit control PWB
									assembly.
						(4)	Outdoor unit control PWB	(4)	Replace the outdoor
									unit control PWB
									assembly.
Indoor/	13	13	-0	DC compressor	Compressor startup	(1)	Check the colors (red,	(1)	Correct the installa-
outdoor	times				error		white, orange) of the com-		tion.
units in							pressor cords for proper		(U: Red, V: White, W:
complete							connection. (PWB side,		Orange)
shutdown							compressor side)
			-1		Compressor rota-	(2)	Check if the IPM terminal	(2)	Replace the outdoor
					tion error		resistance values are uni-		unit control PWB
					(120° energizing		form.		assembly.
					error)	(3)	No abnormality found in	(3)	Replace the outdoor
							above inspections (1) and		unit control PWB
							(2).		assembly.
						(4)	No abnormality found in	(4)	Replace the compres-
							above inspections (1)		sor.
							through (3).
Indoor/	14	14	-0	Outdoor unit	PAM over voltage	(1)	Check the AC power sup-	(1)	Connect stable power
outdoor	times			PAM	error		ply voltage for fluctuation.		supply.
units in					Compressor rota-	(2)	No abnormality found in	(2)	Replace the outdoor
complete					tion error		above inspection (1).		unit control PWB
shutdown									assembly.
Indoor/			-1		PAM clock error	(1)	Check the PAM clock for	(1)	Replace the outdoor
outdoor							proper input.		unit control PWB
units in									assembly.
operation
Indoor		17	-0	Wires between	Serial open-circuit	(1)	Check the wires between	(1)	Connect stable power
unit in				units			units.		supply.
operation						(2)	Check voltage between	(2)	Replace the outdoor
Outdoor							Nos. 1 and 2 on the		unit control PCB
unit in							indoor/outdoor unit termi-		assembly.
complete							nal boards.
shutdown					Outdoor unit does	(1)	Check the wires between	(1)	Correct the wiring.
					not turn on due to		units.
					erroneous wiring	(2)	Check the outdoor unit	(2)	Replace the fuse/out-
							fuse.		door unit control PCB
									assembly.
						(3)	Check 15-V, 13-V and 5-V	(3)	Replace the outdoor
							voltages on the PWB.		unit control PCB
							Check resistance between		assembly.
							IPM terminals.
						(4)	Check pins No. 5 and 7 of	(4)	Replace the outdoor
							connector CN3 of the out-		unit fan motor.
							door unit fan motor for
							short-circuit.
						(5)	Outdoor unit control PCB	(5)	Replace the outdoor
									unit control PCB
									board.
		18	-0		Serial short-circuit	(1)	Check the wires between	(1)	Correct the wiring.
							units.
			-1		Serial erroneous wir-	(1)	Check the wires between	(1)	Correct the wiring.
					ing		units.

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