How to Test and Replace an HVAC Capacitor

Test HVAC run and start capacitors with a multimeter, compare microfarad readings to the nameplate rating, and safely replace a failed one.

This guide is part of the HVACTools.pro library: practical, field-tested HVAC procedures and best practices written for working technicians. The full article renders when the page hydrates; the section below previews related material in the meantime.