Split Type Aircon: Which is best?

[StockEngine]

Aww sabi nung naglinis nasa 2500 daw - gusto ko sana canvass muna sa iba... Sa fan ba may bearing or same lang un?
Nasa 2nd floor terrace ang outdoor unit pero di naman under direct sunlight.

Ah for 2500 that sounds like the condenser fan.

I just dont trust some technicians.