Hi all, I'm having trouble with my home heating/AC. AC nor heating
won't turn on but the fan is still blowing. I already called for
someone to take a look at it, they'll be here in the next day or two.
Meanwhile, I turned OFF the vent fan, is that OK or should I turn it
back on? Any consequences if I leave it OFF? Is it OK to turn OFF the
furnace as well?
Any tips are greatly appreciated.

Thanks!