If the inducer is running and you hear the gas valve click but see no orange glow from the furnace igniter

Common Questions: How do I confirm the 49W63 is the right fit for my Lennox unit

Featuring a 7 3/4" diameter and a 2 7/8" width

While it is designed to operate in any position

the AH24A020 actuator is optimized for use with PopTop series valves

Lennox 69W42 Limit Switch 322057-301 If the inducer is runningThe Lennox 69W42 Limit Switch, also identified as the L220 30 Limit Switch, is a critical OEM safety component engineered for precise thermal regulation within Lennox, Armstrong, and Ducane furnaces. This furnace high limit switch features a 220F opening threshold to interrupt the electrical circuit immediately upon detecting an over temperature condition, effectively preventing heat exchanger damage and ensuring operational safety. With an automatic