Common Questions: What are the symptoms of a failing furnace relay

this unit is classified as a heavy duty damper actuator

chemical-resistant materials to withstand the acidic nature of furnace condensate

this natural gas control valve ensures stable combustion and efficient heat generation in demanding commercial and residential environments

this high limit temperature switch monitors plenum temperatures and provides a fail-safe against overheating

Trane SWT4230 Limit Switch 319847-401 Common Questions: What are theThe Trane SWT4230 Limit Switch is a genuine OEM replacement part engineered for high temperature circuit protection in residential and commercial heating systems. Classified as an L215F limit switch, this SPST (Single Pole Single Throw) thermal cut off is designed to open an electrical circuit when the sensor detects a temperature rise reaching 215F. This precise interruption prevents heat exchanger damage and ensures safe operation within the supply