Armstrong Air 10U93 Pressure Switch – -0.65" WC OEM Replacement
The Armstrong Air 10U93 Pressure Switch is a genuine OEM component designed to ensure safe and efficient furnace operation. With a factory-calibrated activation point of -0.65 inches water column (WC), this switch confirms proper inducer fan performance before allowing the furnace to ignite. It is a critical safety device that helps prevent burner operation under unsafe draft conditions.
This pressure switch is commonly used in Armstrong Air and allied brand furnaces, offering a reliable solution for airflow verification and system troubleshooting. If you're experiencing ignition lockouts or airflow-related error codes, replacing the pressure switch may restore full system functionality.
Key Features:
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OEM replacement for Armstrong Air gas furnaces
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Setpoint: -0.65" WC (negative pressure)
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Ensures inducer airflow before ignition cycle begins
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Helps prevent system errors and ignition lockouts
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Durable, factory-tested part for consistent performance
Alternate / Replacement Part Numbers:
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104018-01
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605187-01
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104106-01
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IS20460-6200
Restore confidence in your furnace’s safety and startup sequence with the Armstrong Air 10U93 pressure switch—engineered for dependable performance in residential heating systems.
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