Guest Written by Guest on 2008-03-06 11:09:45 More often than not, this event is caused by moister from the exhaust pipe of your furnace getting sucked up into your air intake. The moisture freezes on the intake screen, recessed inside the intake pipe just out of site. This cause can be eliminated by putting up a some kind of a barrier between the two pipes,ie: something as simple as a piece of cardboard. It has worked for me. |