Message

Possible cause of malfunction			Alarm
Possible cause of malfunction			message
			message

Activation of	Protective device in indoor unit	Thermal protector in indoor unit fan motor is activated.	<<P01>>
protective	is activated.	Improper wiring connections of ceiling panel.	<<P09>>
device		Float switch is activated.	<<P10>>
	Protective device in outdoor	Incorrect discharge temperature. (Comp. No. 1)	P03
	unit is activated.
	unit is activated.	High pressure switch or over load relay is activated.	P04
		High pressure switch or over load relay is activated.
		Power supply voltage is unusual. (The voltage is less than 160 V
		between L1 and L2 phase.)
		Negative (defective) phase.	P05
		O2 sensor (detects low oxygen level) activated	P14

		Compressor running failure resulting from missing phase in the	P16
		compressor wiring, etc. (Start failure not caused by IPM or no gas.)	P16


		Incorrect discharge temperature. (Comp. No. 2)	P17

		Compressor 3 discharge temp. failure	P18
		Outdoor unit fan motor is unusual.	P22
		Overcurrent at time of compressor runs more than 80Hz (DCCT	P26
		secondary current or ACCT primary current is detected at a time	P26
		other than when IPM has tripped.)
		IPM trip (IPM current or temperature)	H31

		Inverter for compressor is unusual. (DC compressor does not	P29
		operate.)	P29
		operate.)

Thermistor	Indoor thermistor is either open	Indoor coil temp. sensor (E1)	<<F01>>
fault	or damaged.	Indoor coil temp. sensor (E2)	<<F02>>
		Indoor coil temp. sensor (E3)	<<F03>>
		Indoor suction air (room) temp. sensor (TA)	<<F10>>

		Indoor discharge air temp. sensor (BL)	<<F11>>
	Outdoor thermistor is either	Comp. No. 1 discharge gas temp. sensor (DISCH1)	F04
	open or damaged.	Comp. No. 2 discharge gas temp. sensor (DISCH2)	F05
		Outdoor No. 1 coil gas temp. sensor (EXG1)	F06

		Outdoor No. 1 coil liquid temp. sensor (EXL1)	F07

		Outdoor air temp. sensor (AIR TEMP)	F08
		Compressor intake port temperature sensor (RDT)	F12
		High pressure sensor. Negative (defective) N phase.	F16
		Low-pressure sensor failure	F17

		Compressor 3 discharge temp. sensor failure (DISCH3)	F22

		Outdoor No. 2 coil gas temp. sensor (EXG2)	F23

		Outdoor No. 2 coil liquid temp. sensor (EXL2)	F24

		Outdoor No. 3 coil gas temp. sensor (EXG3)	F25

		Outdoor No. 3 coil liquid temp. sensor (EXL3)	F26

EEP ROM on indoor unit P.C.B. failure			F29

Protective	Protective device for compressor	EEP ROM on the main or sub outdoor unit PCB has failed.	F31
device for	No. 1 is activated.	Overload current is detected.	H01
device for		Overload current is detected.	H01
compressor is
compressor is		Lock current is detected.	H02
activated
activated		Current is not detected when comp. No. 1 is ON.	H03
		Current is not detected when comp. No. 1 is ON.	H03
	Protective device for compressor	Compressor No. 2 current trouble (overcurrent)	H11
	No. 2 is activated.	Compressor No. 2 current trouble (locked)	H12
		Compressor No. 2 CT sensor disconnected or short circuit	H13
		Compressor No. 2 discharge temp. sensor disconnected	H15

	Protective device for compressor	Compressor No. 3 current trouble (overcurrent)	H21
	No. 3 is activated.	Compressor No. 3 current trouble (locked)	H22
		Compressor No. 3 CT sensor disconnected or short circuit	H23

		Compressor No. 3 discharge temp. sensor disconnected	H25
		Low pressure switch is activated.	H06

	Oil sensor fault.	Comp. No. 1 oil sensor	H08
	(Disconnection, etc.)	Comp. No. 2 oil sensor	H27
		Comp. No. 3 oil sensor	H28

Continued

W-3WAY_ECO-i_US.indd 95	2008/02/14 19:22:30

Possible cause of malfunction

Alarm