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Chrome-bevel sheet on grid paper — specs and return notes filed under the bay.
intermittent blower relay failure
System Protection: Helps prevent heat exchanger overheating by maintaining strict control over fan "on" and "off" delays
and a flammable vapor sensor
The control body is rated for ambient temperatures up to 200°F (93°C)
Lochinvar & A.O. Smith 100208378 Pressure Switch 318518-761 intermittent blower relay failureThe Lochinvar & A. O. Smith 100208378 Pressure Switch is a critical OEM safety component engineered for precise airflow monitoring in high efficiency boilers and water heating systems. This switch is factory calibrated to a 4. 10" WC (Water Column) set point, ensuring the inducer fan generates sufficient negative pressure for safe combustion. As a direct cross reference for part 100166100, it serves as a standard replacement for several Lochinvar
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