Is there a water leak coming from below your furnace? Do you smell rotten eggs or does your CO2 alarm go off when your AC kicks on? These are serious issues only an experienced technician like the HVAC pros at Blue Taurus  can provide solutions for. Water on the floor may simply be condensation, but depending on your unit they could be the sign of a bigger problem. If you smell gas when you’re A/C turns on, you should immediately shut it off and give us a call at (708) 986-6400. Ignoring leaks will ultimately lead to bigger, more expensive problems.