Toshiba RAV-GM2241AT8-TR Service Manual page 69

Check Outdoor
code LED display
[L10]
[L29]
[P03]
(Item without special mention Indicates part of outdoor unit.)
[Unset model type] Only when service P.C. board is used.
Cut jumper line according
to the explanation sheet packaged
with the service P.C. board.
[Communication trouble MCUs]
Is the communication line between
the compressor IPDU P.C. board
(CN 852) and the fan motor IPDU P.C.
board (CN 504) connected?
Is the communication line between
the Interface P.C.board (CN 802) and
the fan motor IPDU P.C.board
(CN 505) connected?
Replace compressor IPDU P.C. board.
* When replacing Compressor IPDU P.C.board,
replace the fuse.
[Discharge temp. trouble]
Is there gas leak?
Is there refrigerant shortage?
Is PMV normal?
Does an abnormal overload happen?
Is connection of CN603 correct?
Is resistance value of TD sensor correct?
Replace Interface
P.C. board.
Check and troubleshooting
NO
YES
NO
YES
NO
YES
NO
YES
YES
NO
NO
YES
– 69 –
Correct wiring
Correct wiring
Trouble part repair.
Recharge refrigerant.
Replace the PMV.
Remove and improve
the cause of overload.
Replace TD sensor.