2017/01/28: An issue regarding the front page of /jp/ has been fixed. Also, thanks to all who contacted us about sponsorship.
I'm having an issue with my older furnace. It's making a squeaking sound when the heat is running, but not when the blower is running. I'd like to figure out what it could be, but I don't have any HVAC experience, and so I'm asking here. I'm not sure what information could be helpful (and not really sure what info is useful), but if you ask I can try to get it for you.