||11-20-2009 10:19 AM
Carrier Condensation Leak
Just had my furnace Carrier 58XSC100-101JG repaired and paid $600 to have the control board replaced. The board was burned up and the pro said it was due to a condensation leak dripping down and eventually reaching the control board. He showed me the leak. It was where the PVC exhaust pipe mated with the exhaust fan assembly. Looking at it today the leak is still there. There is a rubber coupler that clamps onto the unit exhaust fan assembly ~3in diameter (OD) and then clamps to the PVC exhaust pipe that is 2" PVC. (this is a 2in - 3in coupler to the 3in PVC that vents to the outside) The PVC OD is actually 2 3/4in or so. The rubber coupler clamp on the pvc end is tightened all the way so the seal is poor. Thus it still leaks. It seams to me that the Pro I paid should have noticed the mismatch of pipe diameters and the poor seal. The average hardware store has nothing in 3in OD. Does anyone know the proper mating arrangement / parts for coupling the Exhaust fan to PVC exhaust vent piping?