and TE-6300 Series sensors

Repeated tripping typically indicates a cracked heat exchanger

and ensure reliable pilot-operated functionality

allowing it to substitute for older 370V versions while offering superior thermal stability in high-ambient environments

Optimized Performance: Maintains the exact Bard fan blade pitch required for consistent airflow and system cooling efficiency

Carrier HH18HA170 Limit Switch 318172-701 and TE-6300 Series sensorsThe Carrier HH18HA170 Limit Switch is a critical safety component designed for precise thermal monitoring in residential and commercial HVAC furnaces. This genuine OEM replacement part features an L170 40F specification, meaning it is calibrated to open the electrical circuit when the internal temperature reaches 170F and automatically reset once the temperature drops by 40F (resetting at 130F). Engineered for high limit protection, this switch