4.10"WC PRESSURE SWITCH

100208378 is the cross of 100166100

Lochinvar & A.O. Smith 100208378 Pressure Switch – 4.10" WC

The Lochinvar & A.O. Smith 100208378 Pressure Switch is a genuine OEM component designed to monitor and control airflow pressure in compatible boilers and water heating systems. Rated at 4.10 inches water column (WC), this pressure switch helps ensure proper system operation by verifying that the required airflow or venting pressure is present before allowing the equipment to operate.

This safety device plays a crucial role in protecting heating equipment by detecting improper venting or airflow conditions. If the required pressure is not achieved, the switch prevents the system from running, helping avoid potential damage and ensuring safe operation.

Manufactured to meet original equipment specifications, the 100208378 pressure switch provides reliable performance and seamless compatibility with select Lochinvar and A.O. Smith heating systems. Using a genuine OEM replacement helps maintain system efficiency, safety compliance, and long-term reliability.

Key Features

• Genuine Lochinvar & A.O. Smith OEM replacement part

• 4.10" WC pressure rating for precise airflow monitoring

• Helps ensure safe boiler and water heater operation

• Detects improper venting or airflow conditions

• Durable construction for reliable long-term performance

• Designed for easy installation in compatible systems

Product Specifications

• Brand: Lochinvar / A.O. Smith

• Part Number: 100208378

• SKU: 100208378

• Pressure Rating: 4.10" WC

• Product Type: Pressure Switch

Applications

The Lochinvar & A.O. Smith 100208378 Pressure Switch is used in compatible boilers and water heaters to monitor venting pressure and ensure safe system operation.