7
7
.
.
T
T
R
R
O
O
U
U
B
B
L
L
E
E
S
S
H
H
O
O
O
O
T
T
I
I
N
N
G
G
ON/OFF UNITARY AIR CONDITIONER TECHNICAL& SERVICE MANUAL V5.0
85
Trouble guide
When the air conditioner failure occurs, the fault code will displays on control board , wire remote controller
or display panel.
HOW TO CHECK FAULT CODES
INDOOR UNIT
1.WALL MOUNTED TYPE
For Free-match series
Run the air-conditioner by wireless remote controller ,
continue pressing “SLEEP ”button for 4 times, fault
codes will
flashing rapidly on the
LCD . If no fault , display "00".
“ER”shows indoor display panel communication fault with indoor unit control board .
For VRF series
Fault codes
flash rapidly on the
LCD.
2.FLOOR STANDING TYPE
L5B (indoor box code)series
In the case of no button-locked,continue pressing “CLOCK”button for 8 times ,fault codes will display on
the LCD for 10 seconds,automatically disappears after 10seconds.
Continue pressing “SLEEP”button of wireless remote controller for 8 times ,fault codes will display on the
LCD for 10 seconds,automatically disappears after 10seconds.
“ER”shows indoor display panel Communication fault with indoor unit control board
L5C(indoor box code) series
Continue pressing “SLEEP”button of wireless remote controller for4 times ,fault codes will display on the
LCD for 10 seconds,automatically disappears after 10seconds.
3.DUCT , CASSETTE,CEILING&FLOOR TYPE
(1)
ERROR CODES INDICATED BY WIRE REMOTE CONTROLLER(see fig. below)
MOEDL:YXC-A01U(E)
When failure occurs, this lamp light ON.
This number shows ERROR CODE.
When display“FE” ,shows that the wire
controller can’t receive the signals of
