Trane THT0633 T-Stat Els PW 17895 the contacts are likely oxidized

the contacts are likely oxidized or the coil has an open winding

Common Questions: What causes a flame sensor wire to fail

opening the circuit when internal temperatures reach 240°F to interrupt the gas valve and closing once the plenum drops to 200°F

The Danfoss 042N7551 is a 24VDC solenoid coil engineered for heavy-duty performance in demanding HVACR and industrial fluid control systems

With a temperature range of 58°F to 86°F and a fixed 5°F differential

Trane THT0633 T-Stat Els PW 17895 the contacts are likely oxidizedThe Trane THT0633 is a high limit snap disc thermostat engineered for precise thermal regulation within HVAC systems. This fixed temperature switch features an open on rise configuration, specifically calibrated to open at 140F and close at 110F. Designed as a direct OEM replacement for Trane and American Standard units, this bimetal disc limit ensures reliable performance in gas furnaces and air handlers by interrupting the safety circuit when