Armstrong Furnace R43203-002 HSI Ignitor This 180-second delay relay is

This 180-second delay relay is designed to prevent short-cycling

Compact Encapsulated Design: Lightweight

common issues include a clogged collector box port

though you must never replace a 440V capacitor with a lower-rated 370V unit

The Bard HVAC 8201-065BX is a critical SPST normally open time delay relay designed for professional-grade climate control systems

Armstrong Furnace R43203-002 HSI Ignitor This 180-second delay relay isThe Armstrong Furnace R43203 002 HSI Ignitor is a critical OEM replacement component engineered for precision ignition in Armstrong Air and Lennox family gas furnaces. As a high performance hot surface ignitor (HSI), this part is designed to reach the specific ohm range and temperature necessary to ensure consistent pilot free furnace ignition without tripping flame sensors or causing delayed ignition sequences. This genuine Armstrong replacement part