Amana-Goodman C6456507 Pressure Switch

When you're troubleshooting a furnace that won't initiate the ignition sequence, the Amana-Goodman C6456507 Pressure Switch is often the primary suspect. This OEM Goodman replacement part is a critical safety component designed to verify that the inducer motor is pulling a sufficient vacuum before allowing the gas valve to open. Engineered with a precise -1.2" WC setpoint, this Single Pole Single Throw (SPST) switch ensures the combustion environment is vented correctly to prevent hazardous flue gas recirculation. Using a vacuum pressure switch that meets exact factory specifications is non-negotiable for maintaining the pressure differential required by Goodman and Amana high-efficiency furnaces. This unit features a standard 1/4" barb connection for a quick, secure fit to existing tubing. As a veteran-grade HVAC pressure switch, it provides the mechanical reliability contractors expect when replacing failing sensors in Goodman furnace repair projects, ensuring the system returns to its calibrated operating parameters without extra modifications.

• Factory Calibrated Precision: Fixed -1.20" WC pressure rating ensures the inducer blower creates the exact negative pressure needed for safe ignition.
• OEM Compatibility: Drops directly into Amana and Goodman furnace models, maintaining the original safety tolerances of the equipment.
• Simplified Integration: Includes a standard 1/4 inch barb connection and SPST logic for seamless electrical and pneumatic hookups.
• Reliable Safety Verification: Prevents the heating cycle from starting if the venting system is obstructed or the inducer motor fails to reach speed.

How do I know if the C6456507 pressure switch is bad?
If your furnace inducer motor starts but the burners fail to ignite, check for a "pressure switch stuck open" error code on the control board. Use a manometer to verify if the inducer is pulling at least -1.2" WC; if it is, but the SPST pressure switch shows no continuity across the terminals, the switch likely needs replacement.

Will this work on other furnace brands?
While designed as a Goodman C6456507 replacement, it may physically fit other units with a 1/4" barb. However, because the trip point is specifically set to -1.2" water column, it should only be used in systems where that exact rating is required to ensure safe combustion.

Can I adjust the pressure setpoint on this switch?
No, this is a fixed-rate OEM HVAC part. Attempting to calibrate or adjust the internal spring will compromise the safety logic of the furnace. Always match the "WC rating" exactly to the part being replaced.

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.