2 side by side units for a duplex today.
The upstairs one was checked first.
70 deg out of most vents with my temp gun.
The upstairs unit was struggling to keep up.
“Thats funny” so I turn down the a/c thinking just a little more load.
“Still not working right, and still 69 to 70 deg” “78 off of the return” I go out and grab the compressor suction line. “cold as ice”.
Now what??? I check the tag, and it was sized just right.
I go back to the furnaces and “oh there is the problem!!!”
Can you spot the problem?