Look for physical bulging at the top of the aluminum case

Common Questions How do I verify if the B1225022S coil is faulty

a lack of continuity at room temperature indicates the internal contacts have failed open and the part needs replacement

The double pole single throw (DPST) configuration ensures robust safety by breaking the path for two separate heating elements or lines simultaneously

including wall furnaces and floor heaters

Amana-Goodman 20028401 Pressure Switch Look for physical bulging atThe Amana Goodman 20028401 Pressure Switch is a critical safety component designed for specific high efficiency furnace applications. This SPST (Single Pole Single Throw) inducer pressure switch is factory calibrated to a 1. 35" WC set point, ensuring precise monitoring of the combustion air blower's static pressure. Built for durability in demanding HVAC environments, it features a standard 1 4" barb connection for secure pneumatic tubing attachment