Today's job

Mitsubishi Electric — SUZ-KA24NAHZ outdoor / wall-mount system

Code U2 · Hyper-heat ductless mini-split (R-410A) · hard

“A sunroom mini-split 'hasn't kept up all month.' Now it runs for ten or fifteen minutes, stops with a blinking display showing U2, rests, and tries again. The owner thinks the compressor is dying.”