the Trane BRG1578 Ball Bearing provides the factory-spec precision required to eliminate shaft vibration and friction

This dual-setpoint pressure switch features an automatic reset function

There is no functional difference between these parts

Rugged Durability: Built to meet exacting OEM specifications for high-pressure industrial environments

while 2 flashes typically signal a failed pressure switch and 3 flashes indicate an open primary limit or rollout switch

Lennox 19M54 Board Kit Els PW 29614 the Trane BRG1578 Ball BearingThe Lennox 19M54 Board Kit is a critical gas furnace ignition control replacement designed to upgrade older GCI 3, RAM 3MC5, and EGC 2 platforms to the more reliable GCI 3A (23L53) ignition control board. This comprehensive Lennox 19M54 conversion kit is essential for technicians servicing LF24 and LD24 Series unit heaters and duct furnaces. It ensures precise intermittent pilot ignition sequencing and system diagnostics, resolving common field issues