MULTI TYPE

Check code Check code name
Cause
[P26] / [14]
(AI-NET)
G-Tr short-circuit protection error 1. Outdoor unit power error
2. IPDU error/Wire connection error
3. Compressor error
4. IPDU P.C. board error
Sub-code:
01: Compressor 1, 02: Compressor 2, 03: Compressor 3
Is power voltage
of outdoor unit
normal?
No
Correct power line.
Yes
Is wire connector
connection on
INV P.C. board
normal?
No
Correct connection of wire
connector.
Yes
Is there no fusing
of AC30A fuse?
No
Replace fuse and A3-IPDU
P.C. board.
Yes
Is compressor
normal?
No
Replace compressor.
Yes
Is smoothing
condenser normal?
(1500µF, 400V)
No
Check capacity comingout/external
appearance.
Yes
Replace A3-IPDU P.C. board.
Check code Check code name
Cause
[P22] / [1A]
(AI-NET)
Outdoor fan IPDU error 1. Fan lock
2. Fan IPDU P.C. board error
3. Overload
4. External cause such as blast
Sub-code:
0∗: IGBT short circuit
1∗: Position detection circuit error
3∗: Motor lock
4∗: Motor current error detected
C∗: TH sensor temperature error
D∗: TH sensor error
E∗: Fan Vdc error
Ignore the indication (0-F) on "∗" digit.
Is wire
connector connection
on fan IPDU P.C. board
normal?
No
Correct wire connector
connection.
Yes
Is not outdoor fan
motor locked?
Yes
No
Is the resistance of
the motor's winding
wire normal?
No
* Resistance of the winding: 1.1-1.7Ω (between R-S, R-T and S-T)
Replace motor.
Yes
Is sub-code of
outdoor I/F P.C.
board [0*]?
Yes
Replace fan IPDU.
No
Is there
no problem such as
stuffing or blast blowing
to discharge port of
outdoor fan?
Yes
Clear the cause of overload.
No
Check fan IPDU.
223