Learn how to test an AC capacitor with a multimeter or capacitor tester to determine if it's functioning correctly. Easy step-by-step guide.

Learn how to check an AC capacitor with a multimeter and visual inspection. Diagnose common capacitor problems in your HVAC system.

Learn how to replace an AC capacitor safely and easily! Step-by-step guide with tips for identifying, discharging, and replacing your AC unit's capacitor.