always verify the part number in the technical manual for your specific model

and 3W probe assemblies

This kit resolves "stuck open" issues by replacing the armature spring and clearing the pilot orifice

Environmental debris

The ergonomic black handle provides a non-slip grip required in fast-paced foodservice environments

Lochinvar & A.O. Smith 100275527 Flue Sensor R-407C always verify the part numberThe Lochinvar & A. O. Smith 100275527 Flue Sensor with integrated grommet is a critical safety and monitoring component used across high efficiency condensing boilers and commercial water heaters. This negative temperature coefficient (NTC) thermistor provides real time flue gas temperature monitoring to the control board, ensuring the appliance operates within specified thermal limits and prevents heat exchanger damage. Designed as a direct