Ensure the flame sensor rod is clean and the furnace is properly grounded

Does this valve require regular lubrication

preventing carbon monoxide buildup and overheating of internal furnace components

while higher voltage will cause immediate burnout

Peco Controls SDP155-009 Digital Display R-407A Ensure the flame sensor rodThe Peco Controls SDP155 009 is a professional grade digital display zone sensor engineered specifically for high performance integration with Trane commercial climate control systems. Designed as a direct, cost effective replacement for Trane X13790465, 41901121, and SEN01281, this unit facilitates precise monitoring and energy management within Trane VariTrac zoning, Tracer Summit, and Voyager unitary systems. Built with a 10K Type 2 thermistor