What are the signs of a failing vent grommet

This pluggable terminal block supports 24 VAC Class 2 control circuits

Its durable construction is built to withstand the corrosive environment of high-efficiency 90%+ AFUE furnace systems

This fixed temperature limit switch is calibrated to trip at 160 degrees F

Never operate a system with a bypassed furnace high limit switch as it poses a significant fire hazard

Nordyne 626614 Limit Switch What are the signs ofFor service technicians and HVAC installers, the Nordyne 626614 Limit Switch is a critical OEM component designed to provide precise overheat protection in residential heating systems. This 140 180F M R Limit Switch serves as a high limit safety device, automatically opening the circuit at 180F (82C) to prevent heat exchanger damage and closing once temperatures drop to 140F (60C). As an authentic furnace replacement part, it is engineered for direct