Trane SWT1259 Limit Switch Using the correct York HVAC

Using the correct York HVAC replacement parts is vital for maintaining the 105/165 differential required by the manufacturer’s original design specifications

this lead assembly utilizes high-grade insulation to prevent dielectric breakdown

Verify the integrity of the silicone pressure tubing for cracks or blockages

Durable Construction: Built with high-grade terminal lugs and a dust-shielded housing to prevent debris-related failure

this HI-limit lead wire ensures a reliable electrical path to interrupt gas flow should the system exceed its thermal safety setpoint

Trane SWT1259 Limit Switch Using the correct York HVACThe Trane SWT1259 Limit Switch is a critical furnace safety control designed to monitor high limit temperatures within the heat exchanger. This OEM furnace limit switch features an auto reset mechanism with a fixed 190 degree trip point and a 160 degree reset point, ensuring precise thermal protection for residential and commercial gas furnaces. Engineered with a 3 inch insertion length, this bimetal disc thermostat (L190 30F) acts as a normally