I had 'A' coil and compresser unit installed in 2004, required charging after 2005 season, again in 2008. Last check serviceman told me 'A' coil was leaking per leak test he conducted. 'A' coil is covered under warrenty.
Labor is big ticket item. I am suspicious this 'A' coil was bad from the start and either overlooked by the manufacture or serice personnel installing the unit. Looking for any ammunition I can use to go back to both MFG and installer to not have to pay out full install cost again. Is there any testing that could have, should have been performed at installation to verify system was good?
Any feedback on this subject would be appreciated.