Dual Barb Interface: Standard 1/4" barb ports facilitate rapid connection to sensing lines without the need for additional adapters

This Type 43 power element features a 5-foot capillary tube

Contractor-Focused Setup: Features on-screen guided setup and installer setup logs that track device history

Common indicators include ignition lockout codes

What causes a main limit switch to trip frequently

Carrier HH18HA505 Limit Switch 322056-301 Dual Barb Interface: Standard 1/4"The Carrier HH18HA505 Limit Switch is a critical OEM furnace safety component designed for precise thermal monitoring in Carrier, Bryant, and Payne residential heating systems. This high limit rollout switch is engineered to open the electrical circuit at a factory set threshold of 235 F, effectively preventing heat exchanger damage and unsafe operating conditions. Once the temperature stabilizes and cools to 195 F, the switch utilizes an automatic