Responded to no heat service call for 12-year-old furnace. Homeowner reported clicking noise and flashing red light. Diagnostic inspection revealed normal system operation - red indicator light is standard during heating cycle as verified by flame sensor activation. Inspected gas connections and confirmed no leaks present. Explained to customer that elevated temperature in furnace room is due to supply vent placement directly above unit. No repairs necessary; system functioning properly as installed last year.
