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Duotone bay — asphalt brief on the left, yellow-folded service sheet on the right.
the MARS 71 Relay is non-positional
often indicated by specific flash codes like the common 7-flash error
While the 100650-01 is a digital 2A model
reducing downtime during seasonal maintenance
OEM wiring harnesses provide the exact pin configurations and wire gauges required by the manufacturer
Fenwal 35-605957-015 Ignition Module 321702-401 the MARS 71 Relay isThe Fenwal 35 605957 015 Ignition Module is a 24 VAC microprocessor based Direct Spark Ignition (DSI) control engineered for precision performance in demanding HVACR environments. This Fenwal ignition control provides comprehensive burner management by continuously analyzing system parameters to ensure safe, repeatable combustion cycles. Designed to handle both natural gas and propane applications, the module operates efficiently within a broad