lg multi FM41AH

[Greek_engineer]

Hello my friends!
I have to face a lg multi fm41ah.
THe customer says that the indoor unit display the errors:ch05 and ch09.
The system is multi.Do you have any service manual?
I appreciate your help.

[frank]

Have a look here http://mylg.co.uk/data%20for%20site/Multi%20F_dx_%20Fault%20Codes%20-%20Nov%2007.pdf

[Greek_engineer]

Thanks a lot for your help!