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For a complete trim overhaul
the SPST (Single-Pole Single-Throw) contacts lock open and require a physical technician intervention to resume operation
The Trane SWT2293 Pressure Switch is a critical OEM replacement part engineered for Trane and American Standard gas furnaces
Rugged Construction: Built to withstand the thermal demands of continuous furnace and AC operation
It matches the original electrical specifications and footprint for a drop-in installation
Williams 7735 Limit Switch 328140-751 For a complete trim overhaulThe Williams 7735 Limit Switch is a critical OEM replacement part designed for high temperature safety regulation in Williams Forsaire Counterflow top vent furnaces. Engineered with a 330F fixed temperature setpoint and a 5 inch insertion depth, this high limit safety control ensures the combustion chamber does not exceed safe operating parameters. When air temperature reaches the 330F threshold, the switch opens the electrical circuit to the gas
