Carrier MMY-MAP1204FT9UL - Page 182

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No No
Ye s Ye s
Ye s Ye s Ye s
No
No
No
* Resistance of the winding: 1.1-1.7Ω (between R-S, R-T and S-T)
[P22]
Check code CauseCheck code name
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?
Is not outdoor fan
motor locked?
Is the resistance of
the motor's winding
wire normal?
Is sub-code of
outdoor I/F P.C.
board [0*]?
Is there
no problem such as
stuffing or blast blowing
to discharge port of
outdoor fan?
Correct wire connector connection. Replace motor. Replace fan IPDU.
Clear the cause of overload.
Check fan IPDU.
Ye s Ye s Ye s Ye s Ye s
No
No
No
No
No
[P26]
Check code CauseCheck code name
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
Is power voltage
of outdoor unit
normal?
Is wire connector
connection on
INV P.C. board
normal?
Is there no fusing
of AC30A fuse?
Is compressor
normal?
Is smoothing
condenser normal?
(1500ΩF, 400V)
Correct power line. Correct connection of wire connector. Replace fuse and A3-IPDU P.C. board. Replace compressor. Check capacity comingout/ external appearance.
Replace A3-IPDU P.C. board.
Sub-code:
01: Compressor 1, 02: Compressor 2, 03: Compressor 3