How do I know if my Amana-Goodman 10728329 limit switch is bad

This tee fits 5/8" nominal copper pipe

or Luxaire units

it must be field-installed according to the manufacturer's schematic

MARS 11042 Start Capacitor How do I know ifThe MARS 11042 is a professional grade 43 56 MFD 220 250Vac round start capacitor engineered for reliable motor starting torque in demanding HVACR applications. Designed with a hermetically sealed phenolic case (Bakelite), this 110 series component provides an air tight barrier against oil, moisture, and debris, ensuring long term dielectric stability for single phase motors. The 11042 features an improved terminal design capable of withstanding the