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Enhanced System Protection: Safeguards industrial heating modules and heat exchangers by preventing sustained high-limit excursions
the switch trips due to restricted airflow caused by a dirty air filter
this SPST pressure switch is factory-calibrated to a -1
a "burnt" smell from the 120V coil
Lochinvar & A.O. Smith 100110731 Sensor Assembly 319847-401 Enhanced System Protection: Safeguards industrialWhen you're troubleshooting erratic temperature readings or ignition lockout codes on Lochinvar Knight or A. O. Smith residential gas water heaters, the Lochinvar & A. O. Smith 100110731 Sensor Assembly is often the critical point of failure. This OEM water heater temperature sensor is engineered as a high precision resistance type device, specifically designed to provide the control board with real time thermal data required for internal modulation
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