What is a hard start kit for home air conditioner?

A hard start kit for a home air conditioner is a device that helps the air conditioner's compressor start up. It does this by providing extra power to the compressor during the initial stages of start-up. This can be helpful for air conditioners that are old or have a weak compressor.

Hard start kits typically consist of a capacitor and a contactor. The capacitor stores electrical energy and releases it to the compressor during start-up. The contactor is a switch that connects the capacitor to the compressor.

Hard start kits are relatively easy to install, and they can be purchased at most home improvement stores.