Lochinvar & A.O. Smith 100208379 0.09″WC Pressure Switch

Description

Lochinvar & A.O. Smith 100208379 — 0.09″ WC Pressure Switch

The Lochinvar & A.O. Smith 100208379 is a genuine OEM replacement pressure switch rated at 0.09″ water column (WC). Designed to monitor combustion air pressure in compatible Lochinvar and A.O. Smith water heaters and boilers, this switch provides a critical safety interlock — confirming that proper draft or inducer airflow is established before allowing the burner to fire. Replacing a failed or out-of-spec pressure switch with the correct OEM part ensures reliable, code-compliant operation and helps prevent nuisance lockouts.

Key Features

• Genuine OEM replacement part for Lochinvar and A.O. Smith equipment
• Set point: 0.09″ water column (WC)
• Monitors combustion air/draft inducer pressure for safe burner operation
• Provides safety interlock to prevent burner ignition without proper airflow
• Direct drop-in replacement — no modifications required
• Helps eliminate nuisance lockouts caused by worn or out-of-calibration switches

Application

• Compatible with select Lochinvar and A.O. Smith water heaters and boilers
• Refer to your equipment’s service manual or parts list to confirm compatibility before ordering

Why Choose OEM?

Using genuine Lochinvar & A.O. Smith replacement parts ensures your equipment operates within factory specifications, maintains warranty compliance, and delivers the reliability your customers expect. The 100208379 pressure switch is built to the same tolerances as the original component, providing a precise 0.09″ WC actuation point for accurate airflow verification.