I've got a condensate pump that's overflowing like crazy - it runs when emptied but it's not pumping anything out. I've cleaned it out but I'm wondering if there's something wrong with the drain tube. The tube runs up from the up about six feet and then across the ceiling of my basement and then outside. I can spot some water at a few spots where the tube lays flat below the ceiling but that water doesn't appear to be moving. There does appear to be a film of some sort in spots within the tube, but I can't see any water being pumped into the tube even at the source along the condensate pump.
Grateful for any help.
Grateful for any help.