Arrived on site to perform a tune up on propane furnace. Upon first inspection, we found that the igniter and burner tubes needed to be replaced. After providing estimates for both parts, we continued on with the tune up. When we were testing the system we found evidence that the heat exchanger is cracked. We performed a lighter test at the burners and found the flame was sucked right into the heat exchanger which leads me to believe there is a hole or crack somewhere allowing the blower fan to suck combustion gases through and into the ductwork. Unfortunately we had to disable the furnace. We took measurements of the ductwork and pictures of the general area so we can properly provide an estimate to replace the furnace. Thank you for your patience.
