This is the cj section. Most of us don't even know was a/c is and those that do use them for on board air.
But sounds like your flaps or diverters are stuck. Not sure if they are electric or vacuum controlled but may be a simple loose hose to fix that. The switch issue may be due to a bad switch or something is not making contact with the blower to come on. It's probably not the blower itself.
It's red too.