Help! New homeowner here. We have a carrier minisplit in our bedroom, which works well. We live in a rowhouse (so two brick walls on the side), so a condensate pump is used to pump water onto the roof and to the back of the house. The problem is that the pump makes a loud buzzing sound every 1-2 minutes. Is that frequency normal?
The annoying part is that it does this even when the unit is turned off. I'm very new to this HVAC stuff but after doing some research, it seems like there's an issue with the float switch. What should I do? Get a new pump? The HVAC tech didn't seem like could help with this but I'm pretty useless with this level of DIY. I can't sleep with it buzzing constantly -- help!