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: Lighting
: Flashing
: OFF
: The air conditioner automatically enters the auto-address setting mode.
ALT: When two LEDs are flashing, they flash alternately. SIM: When two LEDs are flashing, they flash in synchronization.
Receiving unit display OR: Orange GR: Green
P15
ALT
Gas leakage
detected
Outdoor
There may be gas leakage from the pipe or
connecting part. Check for gas leakage.
Entire
stop
P19
ALT
4-way valve error
Outdoor
(Indoor)
4-way valve, indoor temp. sensors (TC/TCJ) --- An
error was detected due to temperature drop of the
indoor unit heat exchanger sensor when heating.
Auto-
reset
P20
ALT
High-pressure
protective operation
Outdoor
High-pressure protection
Entire
stop
P22
ALT
Outdoor unit fan error Outdoor
Outdoor unit fan motor, outdoor unit P.C. board --- An
error (overcurrent, locking, etc.) was detected in the
outdoor unit fan drive circuit.
Entire
stop
P26
ALT
Outdoor unit inverter
Idc activated
Outdoor
IGBT, outdoor unit P.C. board, inverter wiring,
compressor --- Short-circuit protection for compressor
drive circuit devices (G-Tr/IGBT) was activated.
Entire
stop
P29
ALT
Outdoor unit position
error
Outdoor
Outdoor unit P.C. board, high-pressure switch ---
Compressor motor position error was detected.
Entire
stop
P31
ALT
Other indoor unit
error
Indoor
Another indoor unit in the group is raising an alarm.
Entire
stop
E03/L07/L03/L08 alarm check locations and error
description
Auto-
reset
Wired
remote
controller
display
Wireless remote controller
Sensor block display of
receiving unit
Main defective parts
Judging
device
Parts to be checked / error description
Air
conditioner
status
Indication
Operation Timer
Ready
GR GR OR
Flashing
101-EN
102-EN
+001114119401_01EN.book Page 51 Wednesday, October 31, 2012 4:56 PM