All-In-One Retrofit: Includes module

The 81L71 ensures the ignitor is positioned at the exact focal point of the gas flow for immediate ignition

or debris trapped in the valve body

and 20046601

though it is standard practice to verify the differential pressure sensor signal during seasonal commissioning

Trane MOD1298 Ignition Module R-134A All-In-One Retrofit: Includes moduleThe Trane MOD1298 Ignition Module is a critical direct spark OEM component engineered specifically for high efficiency gas fired furnaces and residential boilers. As a 2 stage ignition control, this module manages the full sequence of operation, including burner initiation, flame sensing, and valve control to ensure reliable heating cycles. This genuine Trane replacement part, also identified by part numbers MOD01298 and X13650877 02, serves as a drop