Hi. I believe my furnace combustion air blower is having trouble. We noticed a burnt smell in the house yesterday, and this morning I inspected the furnace (or tried to).
I noticed a lot of rusty water leaking from the CA exhaust piping (PVC pipe, exhausts to side of house). I shut the furnace off, waited a while, the turned back on. The blower started, the burners lit, but after just a few minutes the furnace shut down. The CA blower sounds bad - almost as if the impeller housing has water in it.
Could a failing CA blower cause insufficient flow, and allow condensate to drain back into the blower housing? I'm stymied at this point.
Any help or input would be greatly appreciated. Thanks!