Amana-Goodman B1370148 Pressure Switch

The Amana-Goodman B1370148 Pressure Switch is a critical safety component designed for specific high-efficiency furnace models. This SPST (Single Pole Single Throw) inducer pressure switch is factory-calibrated to a -1.19" PF (Pressure Fall) set point, ensuring the combustion blower is pulling sufficient vacuum before allowing the ignition sequence to proceed. Featuring a standard 1/4" barbed connection for vacuum hose attachment, this genuine OEM Goodman furnace pressure switch serves as a direct replacement for failed units causing furnace pressure switch stuck open codes. It monitors the differential pressure within the heat exchanger, protecting the system against venting obstructions or inducer motor failure. When diagnosing a no-heat call, verifying the micro-amp signal and the integrity of the diaphragm in the B1370148 switch is essential for restoring reliable furnace operation. This component is built to withstand the thermal cycling and moisture typical of condensing furnaces, ensuring long-term HVAC system safety and compliance.

• OEM Precision: Guaranteed -1.19" WC set point for exact compatibility with Amana and Goodman inducer assemblies.
• Standardized Ports: Equipped with a 1/4 inch barbed vacuum port for a secure, leak-free connection to the pressure tubing.
• Rapid Diagnostics: Simplifies troubleshooting of furnace limit switch errors and venting issues in high-efficiency units.
• Heavy-Duty Contacts: High-quality SPST switch contacts ensure reliable electrical continuity throughout the heating cycle.

What does a -1.19" PF rating mean for this switch?
This indicates the specific vacuum pressure at which the switch contacts will open or close. Using a switch with an incorrect pressure rating can lead to premature shutdown or unsafe operating conditions.

Can I use this B1370148 switch on other furnace brands?
While some specifications may overlap, this Goodman OEM part is specifically engineered for Amana and Goodman models. Always verify the part number against the manufacturer’s data plate.

How do I test if this pressure switch is failing?
Use a manometer to verify the inducer is pulling at least -1.19" WC and a multimeter to check for continuity across the terminals once that pressure threshold is reached.

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.