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What causes this blower wheel to fail
the 143-62-023-42 orifice is compatible with natural gas
effectively cutting power to the heating element when the preset temperature is achieved
including 1-inch and 6-inch bronze paddles to accommodate various pipe diameters and flow velocities
ensuring perfect electrical integration and physical fit on the refrigerant tubing
Trane SWT1280 Limit Switch What causes this blower wheelThe Trane SWT1280 Limit Switch is a high reliability OEM thermal protection component specifically engineered for HVAC furnace safety and consistent air handler performance. This 3" insert limit switch serves as a critical fail safe, monitoring supply plenum temperatures to prevent equipment damage. It is factory calibrated with a 155F opening point and an automatic reset that closes the circuit at 125F. For field technicians, the SWT1280 is identical