Amana-Goodman 11177114 Pressure Switch

The Amana-Goodman 11177114 Pressure Switch is a mission-critical (-)1.10PF dual pressure switch designed for heavy-duty HVAC applications. This specific furnace pressure switch serves as a vital safety component, monitoring inducer motor performance and pressure differentials within the heat exchanger to ensure proper combustion airflow. Engineered for precise differential pressure sensing, the 11177114 model is a direct OEM replacement for various Amana and Goodman gas furnaces, providing reliable circuit interruption if venting or intake blockages occur. As a high-altitude pressure switch compatible component in specific configurations, its calibrated set point of -1.10" WC ensures the system operates within exact manufacturer parameters. For technicians performing HVAC diagnostics, this switch features standard spade terminals for quick integration into the existing limit switch circuit, maintaining the sequence of operation and preventing hazardous conditions during the ignition cycle.

• OEM Precision: Guaranteed direct replacement pressure switch for Goodman and Amana equipment, ensuring calibrated -1.10" WC set points.
• Dual Switch Functionality: Provides redundant safety monitoring for both combustion air intake and exhaust vent pressures.
• Durable Construction: Built with high-grade diaphragms to resist furnace heat cycles and prevent premature failure due to environmental fatigue.
• Simplified Installation: Standard HVAC terminal connections allow for rapid field replacement during service calls.

Common HVAC Questions

Does a -1.10PF switch work for all Goodman furnaces?
No, pressure switches are calibrated to specific inducer draw and venting requirements. Always verify the WC rating on the original part before installing replacement furnace parts.

What causes a pressure switch error on an Amana furnace?
Common issues include a restricted flue pipe, a failing inducer blower motor, or moisture buildup in the vacuum tubing. If these are clear, the 11177114 may have a ruptured internal diaphragm.

Is the 11177114 polarity sensitive?
The electrical contacts are non-polarized, but the vacuum port orientation and tubing connections must match the original setup exactly to ensure proper pressure differential sensing.

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.