What’s That Smell? Why Your Mini Split Stinks — and What to Do About It

A ductless mini split wall unit installed in Belmont Massachusetts by Endless Energy

Your ductless mini split is supposed to keep your home comfortable—not make it smell like a sweaty gym bag. But every now and then, we get calls like: “It’s cooling fine, but it smells awful.”“There’s this gross, musty smell every time it kicks on.”“It kind of smells like something’s burning—should I be worried?” Short answer? […]