Hisense AHM-080HCDSAA - Page 359

338
Troubleshooting
Is LED3 (yellow) on I.U.
PCB1 ON?
Is LED3 (yellow) ON even if
terminals of Transmission between
I.U.and O.U. is removed?
Faulty I.U. PCB1
Check outdoor unit
connection
No
No
Is LED3 (yellow) on I.U.
PCB1 flashing more than
once in 10 seconds?
Does refrigerant system
No. setting between
outdoor unit and indoor
unit correspond?
(O.U. -DSW6
I.U. - DSW8 )
Yes
No
Yes
Faulty O.U. Main
PCB
No
Yes Yes
Check wiring between
outdoor unit and indoor
units or fuse (EF) for
I.U. PCB1/O.U. Main
PCB
Set it correctly