Surephon SPP6 AC Hard Start Kit – Fixes Stalling, 1/2-10HP, 4,000-120,000 BTU

A reliable Surephon SPP6 Hard Start Kit solves stubborn starting issues in air conditioners by delivering a 500% boost in compressor torque, preventing stalling, clicking, or failure to kick on. Designed for HVAC units ranging from 4,000 to 120,000 BTU (1/2 to 10 HP), this kit is a cost-effective alternative to costly compressor replacements, offering a seamless upgrade for both DIYers and professionals.

The kit includes an integrated solid-state relay and hard-start capacitor in a single unit, eliminating loose parts and simplifying installation. With just two wires connected across your existing run capacitor, setup takes under 5 minutes—no additional circuit modifications required. Built with high-temperature and high-voltage-resistant materials, this hard start kit ensures long-term reliability and safety. Always disconnect power before installation to protect yourself and your equipment.

Backed by 12-hour USA-based customer support, Surephon guarantees quality and performance. This kit directly replaces common OEM part numbers like TJ90HS6, AP4502872, and HS6, but verify compatibility with your original part number before purchasing.