Short field sequences. For step-by-step R-32, recover, vacuum, braze, and capacitor work, open How To.
6 min
Fixed orifice and piston systems. Indoor wet bulb plus outdoor dry bulb set the target.
6 min
TXV and EEV systems. Subcooling is the charge knob; superheat is the valve health check.
8 min
EPA 608 path: recover, repair, evacuate, weigh in. No venting, no ‘just a hiss.’
4 min
Dual and single run capacitors. Most ‘dead condensing units’ are still a weak cap.
4 min
Pitted contacts look closed and still starve the compressor. Measure under load.
8 min
Photograph the silk. Match staging, igniter, and motor class. A 50A55 does not run ComfortBridge or a 9-speed tap.
5 min
Five minutes on, two off is not a thermostat preference. Find the protection that is opening.
7 min
Most ‘low charge’ calls are filters, coils, and undersized returns. Prove airflow before you weigh in.
5 min
Thaw first. Diagnose second. Charging a frozen coil guarantees a callback.
4 min
A wet switch is a symptom. Find why the water is not leaving.