If the inducer motor runs and you hear the gas valve click but no ignition occurs

The resistor is designed to bleed off residual voltage

specific twinning capabilities depend on the furnace model

Technical Consistency: Direct replacement part for Danfoss 068-201500

Trane THT2542 Limit Switch R-134A If the inducer motor runsThe Trane THT2542 Limit Switch is a critical safety component designed for precise thermal monitoring in Trane HVAC systems, including residential furnaces and air handlers. This OEM replacement part (also identified by part number THT02542) is engineered as an L130 20F limit switch, meaning it is set to open the circuit at 130F and close with a 20F differential (re closing at 110F). This automatic reset function ensures the unit interrupts operation