This was a system check on two units - one for the upstairs rooms and one for the downstairs rooms. The checks of the indoor half of each system were rapid and professionally performed. One difference from prior checks was reading the temperature of the conditioned air as it exited the evaporator and fan unit by inserting a temperature probe into the main duct. One system had air 20 degrees cooler than the ambient air in the house, the other system had was 14 degrees cooler. The outside systems (compressors) were then checked. The main checks seemed to be the status of the start capacitor and hosing down the coils. What seemed to be missing was a check of the freon pressures. The explanation was that the temperature drops on the inside units indicated adequate performance. I would have thought that the unit with only the 14 degree drop probably would indicate some issue with freon pressure or levels in the unit. I believe this is the first system check-up that has been performed on any of my heat pump units that did not include freon tests. I reserve judgement on how I well the checks indicate system health until next year. Don Shurtz
