Diagnostics Checklist
We isolate root causes with a comprehensive sequence of tests:
- ✓Electrical: capacitors, contactors, relays, boards, sensors
- ✓Airflow: blower speeds, filter restriction, duct static & leakage
- ✓Refrigerant health: pressures, subcool/superheat, coil condition
- ✓Condensate system: drain line, pan safety, float switches
- ✓Controls: thermostat calibration, communication & mode logic