Armstrong Air 14A45 Pressure Switch – OEM Replacement for 104549-03
The Armstrong Air 14A45 Pressure Switch is a genuine OEM replacement part designed to help regulate and monitor airflow in high-efficiency gas furnaces. This switch plays a critical safety role by confirming proper draft pressure from the inducer motor before ignition, helping to ensure safe furnace operation and prevent system lockouts.
Compatible with a variety of Armstrong Air heating units, the 14A45 pressure switch is ideal for addressing issues related to startup failure, pressure errors, or inconsistent ignition cycles. Built to OEM standards, it offers accurate performance and seamless replacement.
Key Features:
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OEM pressure switch for Armstrong Air gas furnaces
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Verifies inducer airflow before burner ignition
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Supports safe and efficient furnace operation
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Helps prevent ignition lockouts and error codes
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Factory-calibrated for reliable, long-term use
Alternate / Replacement Part Numbers:
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104549-03
Whether you're servicing a faulty system or conducting preventative maintenance, the 14A45 pressure switch provides the reliability and safety your heating system needs to run efficiently.
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