So your home stinks and you can’t quite figure out where the bad odor is coming from. All you know is that it smells like dirty socks and it’s driving you crazy! If you direct your attention to your HVAC system and the smell begins to intensify, you’re on the right track. The good news is, the smell doesn’t indicate that you need heater repair; it does, however, mean that you’re dealing with Dirty Sock Syndrome.