There's a normal amount of condensation when a AC is running. If it's dripping on the floor, look for the white PVC pipe that is supposed to be there to drain it. If it's coming from inside the unit, call a repair person. If not, the water will rust and corrode other parts and you'll need to spend a lot more money later by ignoring it now.
it's the same as the furnace filter. the air conditioner runs through the furnace to push he cold air. change your furnace filter and you are changing the air filter on the air conditioner
Generally allow one day for replacing a furnace and one day for replacing an air conditioner. You need to replace furnace and air conditioner at the same time.
yes
No, but your furnace still does
Usually a 3 ton - 70,000btu furnace.
The furnace or air handling unit in the house.
yes.
It is okay if it leaks a bit of water outside but if it is leaking inside the house no it is not normal or okay.
dead mouse inside the furnace
Air conditioner. One heats the interior of the house; the other cools it.
If you mean leaking water in the car then the drain is probably stopped up.
Breathing in or contacting the refrigerant (gas) is a health hazard. Some types of refrigerant-gases are highly flammable when exposed to an arc or an open flame. The question does not specify the substance that is leaking from the air conditioner.. (Is it water or gas. )