while 4 flashes often point to an open primary limit switch or a blown fuse on the board

short cycling due to pressure fluctuations

Field-selectable 0-10 VDC humidity output and 0-5 VDC options allow for rapid onsite configuration to match controller requirements

Industrial Durability: Robust diaphragm construction resists early fatigue from humidity and thermal fluctuations within the furnace cabinet

Can I use this relay for both SPST and SPDT applications

Trane SWT0767 Limit Switch 322057-301 while 4 flashes often pointThe Trane SWT0767 Limit Switch is a critical safety component designed for high temperature monitoring in HVAC furnace applications. This 300F CO M R limit switch operates as a manual reset thermal cut out, ensuring that the system shuts down if heat exchanger temperatures exceed the safe threshold of 300 degrees Fahrenheit. Engineered for Trane and American Standard furnaces, this normally closed (NC) switch breaks the electrical circuit upon