Lochinvar & A.O. Smith 100111914 Pressure Switch

AIR PRESSURE SWITCH

100111914 is identical to NS2-1138-00

Lochinvar & A.O. Smith 100111914 Air Pressure Switch – OEM Replacement for GAHH-40 & GAHH-50

The 100111914 Air Pressure Switch is a genuine OEM replacement part designed for use with Lochinvar and A.O. Smith water heaters and boilers. This pressure switch is engineered for compatibility with GAHH-40 and GAHH-50 models, ensuring proper airflow detection and safe system operation. Replace worn or faulty switches to restore system reliability and maintain safety standards.

Product Features:

• OEM Part Number: 100111914

• Product Type: Air Pressure Switch

• Application: Ensures proper airflow for safe ignition and operation

• Used With: GAHH-40, GAHH-50 water heaters

• Manufacturer: Lochinvar / A.O. Smith

• Installation: Direct-fit replacement for compatible models

Why Choose OEM?
Using an original manufacturer part guarantees compatibility, performance, and safety—protecting your equipment and ensuring efficient operation.

Safety Notice:
⚠️ California Proposition 65 Warning: This product may contain materials known to the State of California to cause cancer and/or reproductive harm. For more information, visit www.P65Warnings.ca.gov.