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Legacy Compatibility: Direct drop-in replacement for 301-IRFS series sensors and part numbers M-505413 and VA301IRFSR123
the 104L2197HS ensures reliable thermal management in systems requiring precision cooling
which is intended for indoor applications
and alarm history
Carrier 17122000002495 Control Board 318973-401 Legacy Compatibility: Direct drop-in replacementThe Carrier 17122000002495 Control Board is a critical OEM replacement main circuit board designed for precise regulation of logic functions in specific Carrier, Bryant, and Payne HVAC systems. As a foundational component for system communication, this Carrier furnace control board manages the ignition sequence, blower motor timing, and safety circuit monitoring. Technical failure in the original board often manifests as intermittent limit switch
