a cartoon illustration of a man cleaning his air conditioner

I'm diving into the mystery of why your FCU is waking you up at night, and I'm going to try to figure it out in one night!So let's start with the basics. Your FCU, or Fan Coil Unit, is probably one of the most crucial components of your home's heating and cooling system. It's responsible for circulating warm or cool air throughout your home, making your living space comfortable and cozy. But what happens when it starts disrupting your peaceful slumber?One of the most common issues with FCUs is noise. Whether it's a gentle humming or a loud clunking, an FCU that's making excessive noise can be a real sleep-killer. Another problem is temperature fluctuations - you know, when your bedroom is freezing one minute and sweltering the next. And then there are the malfunctions - when your FCU just decides to stop working altogether, leaving you shivering or sweating in the dark.But that's not all. Dirty or clogged air filters, worn-out fan belts, and even incorrectly installed FCUs can all contribute to a night of res