Description
Lennox 14A45 Pressure Switch – OEM Furnace Airflow Safety Control
The Lennox 14A45 Pressure Switch is an OEM replacement component designed to ensure safe furnace operation by confirming adequate airflow through the inducer before ignition. This pressure switch protects your system from operating under unsafe draft conditions, helping prevent startup errors and ignition lockouts.
Factory-calibrated for Lennox systems, the 14A45 is an ideal replacement for aging or malfunctioning switches that cause airflow-related fault codes. It’s compatible with select Lennox and allied brand furnaces and installs easily with matched fittings and connectors.
Key Features:
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OEM furnace pressure switch for Lennox gas systems
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Ensures proper inducer airflow before ignition
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Helps prevent startup failures and draft-related lockouts
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Precision-calibrated for safe and reliable performance
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Easy installation with direct-fit design
Alternate / Replacement Part Numbers:
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104549-03
Keep your Lennox heating system running safely and efficiently with the 14A45 pressure switch—an essential part for proper draft sensing and ignition control.
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