Replaced AC Compressor and Evaporator worked for 3 weeks and still loses refrigerant. Where could be the leak?

[Denny]

Replaced AC Compressor and Evaporator worked for 3 weeks and still loses refrigerant. Where could be the leak?
I know the new compressor and evaporator works, and all the connectors were changed. System retoped up and it still loses AC after 3 weeks of use.

 

[bmart]

Subarus leak at O-rings, rarely actual components. Did you replace all of the O-rings while you had it open to atmosphere? Suck the moisture out once you reassembled before you filled?

 

[Denny]

Yes this was this was done two times when it was refilled.

 

[bmart]

It can be tested for leaks, but I suspect an O-ring or three were missed.

 

[Buzzingwickedly]

I find most leaks on the condenser, did you add a dye in the system when refilling?