回复:most new condenser came sealed w/ 6-8lbs R22..
So from what we talked, it seems like that the a-core should be around $200-300 instead of $1000 and the $500 labor is ok. The contractor told me to cut it and weld a new one there takes 2-3 hours.Howerver, you mentioned it is a whole day work, is there anything they are not doing it correctly? Thank again for all your anwser.