I have a high efficiency gas furnace in the attic of 2 story house. The condensation is connected to the basement sewer ejection pump. Every time when the furnace is running, I can hear consistent dripping sound behind the wall somewhere between the first floor and basement every 5-10 seconds. It stopped immediately when furnace stops. I can see the water dripped out from the end of pipe to the sewage ejection pump in the basement, but where the sound comes from is about 15 ft away from the ejection pump. And the sound is more pronounced on the first floor. Since the basement is finished, I couldn't tell the plumbing behind the wall.
Where should I start to troubleshoot the problem? Thanks all. Happy Thanksgiving.
Where should I start to troubleshoot the problem? Thanks all. Happy Thanksgiving.