OEM Direct Compatibility: Fits a broad range of Lennox and Allied heating equipment

leak-proof seal during reassembly

If the SA-14FM remains yellow after a deep evacuation

including models 25098

or a clogged port on the inducer housing that prevents the vacuum signal from reaching the switch

Trane CNT3457 Module Els PW 17895 OEM Direct Compatibility: Fits aThe Trane CNT3457 Integrated DSI Module is an OEM direct spark ignition control board designed for high reliability flame management in gas fired residential furnaces. This critical component serves as the localized ignition control module, orchestrating 24V signal processing, gas valve actuation, and flame rectification sensing to ensure safe burner operation. For technicians servicing Trane or American Standard equipment, the CNT3457 often replaces