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
90
FOR INVERTER UNITARY AIR CONDITONER&VRF
* VRF
：
Indoor unit can indicate both indoor failure and outdoor failure ,but outdoor only indicate outdoor’s.
FOR MULTI-SPLIT TYPE
Error code display on digital tube board directly.
Digital Tube
Outdoor Control Board
