First off I'm a layperson at this so bare with me. I recently bought an Amana heat pump and air handler to replace a 17-year-old Goodman. PROBLEM: It runs FOREVER!!! I live in Las Vegas and this is the first hot whether the unit has experienced and come 95-100 degrees, the thing won't shut off. It was 106 the other day and it could not cool the house down below 81-82 degrees and ran from 1pm until I had enough and shut it off at 8pm. Now, we here in Vegas know that at those temps from 1pm to 4pm your AC is gonna run without shutting off, but not until 8pm. I've had the contractor come out once already and the tech said that the refrigerant was a little low so he "topped it off" (my words, not his). The old unit didn't run nearly as long or as often as the new one even at lower outside temps.
The output at the registers seems too high: 65 degrees @ 95 outside, 71-72 degrees over 100. I'm not asking this thing to make it so cold I can hang meat in the kitchen. Therm is set at 79-80 degrees. I inspected the HP and (I'm just trying to compare it to something) the supply line is cool to the touch, were as my neighbors are COLD. The new unit is a 5 ton and the old one was 4 ton. Should cool the house even better, no? The old unit worked far better than the new.
Everything, to my limited observation, is telling me there is a problem, but I have no way to prove or disprove myself, so your input would be greatly appreciated! Because as it stands right now, I think it's broke and the technician is going have a bad day if I don't like what I hear from him. If I'm gonna be "that guy" to the tech, I want to make sure I'm a LITTLE educated on the subject matter...
Amana: ASZ-140601AC HP and AEPF-426016BB AH.
1760 sq ft upstairs condo with cathedral ceilings. Tile roof, stucco walls.
Duct work is in the attic and everything is insulated with short runs from the AH to most registers. HP is in a constantly shaded area.
Thanks in advance...