In Buckeye, near West Portland Street and 30th Avenue performing a diagnostic on a Daikin mini split condenser. Upon arrival, I noticed oil coming from the second port on condensing unit. Removed all covers to air handlers and re tightened fittings; got into attic to make sure no leaks were present on copper fittings or line. In master air handler, noticed oil or condensation on evap coil. Tested with soap bubbles and leak detector, but no sign of leak presented.
