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high-performance replacement for the standard 1156F series
Reliable Sealing: Equipped with Buna-N (NBR) elastomers for consistent performance with gaseous fuels
quiet operation and reduced motor wear
as it typically indicates a blocked flue or significant soot accumulation
it features a heavy-duty single set screw for securing the hub to the motor shaft keyway or flat
Trane SWT1651 Limit Switch 321894-706 high-performance replacement for the standardThe Trane SWT1651 Limit Switch is a critical safety component designed for precise thermal regulation within residential and light commercial furnace heating systems. As a veterans choice for OEM HVAC replacement parts, this auto reset limit switch operates within a specific 130 160F window. It monitors the supply plenum temperature, automatically interrupting the electrical circuit if the heat exchanger exceeds the 160F safety threshold. Once the