Technicians should look for a weak

the 113275 is manufactured with a corrosion-resistant coating that prevents seizing in the high-heat zones of the burner assembly and heat exchanger panels

this rod provides the exact dimensions needed to restore factory-spec stroke and alignment

and Grainger

a clogged or improperly sized natural gas burner orifice can lead to incomplete combustion

Titan TOCFD405 Run Capacitor Technicians should look for aThe Titan TOCFD405 is a professional grade dual rated motor run capacitor designed for high performance HVACR demand. Featuring a 40 5 MFD capacitance, this oval run capacitor provides the precise phase shift required for both a compressor and a condenser fan motor. Constructed with heavy edged metallized polypropylene film, the unit is rated for 440 370 volts, making it a versatile 1 for 1 replacement for systems currently using either voltage