Carrier HK06NB010 Pressure Switch

The Carrier HK06NB010 Pressure Switch is a factory-authorized OEM safety component designed specifically for secondary heat exchanger monitoring and draft inducer verification in high-efficiency gas furnaces. Rated at a fixed 1.18" WC trip point, this SPST (Single Pole Single Throw) switch ensures the combustion blower is moving sufficient air to safely vent flue gases before the ignition sequence initiates. Constructed with a 1/4" barb connection for secure pneumatic tubing attachment, it provides high-precision sensing needed for condensing furnace pressure switch replacement. Service technicians often encounter failures in high-efficiency furnace draft switches due to moisture buildup or diaphragm fatigue; this genuine replacement restores the furnace inducer safety circuit to original equipment manufacturer specifications. Compatible with various Carrier, Bryant, and Payne furnace models, the HK06NB010 is engineered to handle the low-voltage control signals of modern HVAC boards while resisting the corrosive effects of flue condensate within the sensing lines.

• Precise Pressure Calibration: Factory-set at 1.18" WC for accurate draft verification.
• OEM Compatibility: Exact drop-in replacement for Carrier, Bryant, and Payne HVAC systems.
• Durable Construction: Heavy-duty diaphragm designed to withstand high-cycle operations in residential furnaces.
• Standardized Connections: 1/4" barb allows for quick integration with existing sensing hoses.
• Safety Compliance: Ensures the pressure switch closes only when the inducer motor reaches the required RPM and airflow.

Is this switch compatible with my specific furnace model?
This pressure switch is used extensively in Carrier 58 series and Bryant 355 series condensing furnaces. Always verify the WC rating on the existing switch's label before installation.

How do I troubleshoot a pressure switch open error code?
Always inspect for obstructed venting, clogged condensate drains, or cracked tubing before replacing the switch. If the inducer is running and the lines are clear, use a manometer to verify the 1.18" WC threshold is being met.

What causes these switches to fail prematurely?
In high-efficiency units, acidic condensate can back up into the pressure switch if the furnace is not pitched correctly or if the drain trap is blocked, leading to diaphragm damage.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.