Always verify the required probe length for your specific tank configuration

Smith 100111059 Gas Valve is a critical replacement component engineered for precision fuel regulation in high-efficiency commercial water heaters

If no pilot flame is sensed after three trials (interspersed with 6-minute delays)

This is critical for system testing

Carrier HH18HA509 Limit Switch THPU32HP7Y Always verify the required probeThe Carrier HH18HA509 Limit Switch is a critical OEM replacement part engineered for precise thermal protection in Carrier, Bryant, and Payne furnaces. This high temperature limit switch operates as a normally closed safety device, designed to open the electrical circuit if the heat exchanger exceeds safe operating parameters. Rated for a 155F195F range, it features an automatic reset mechanism that restores continuity once temperatures drop below the