It sounds like the blower is not blowing, check the fuse for the blower.
To add to the above, I had the same issue on a '97. I could hear it clicking and trying to blow but nothing came out. I took the blower motor housing off (located underneath behind the glove box...very easy to get to) and it was clogged with leaves, small twigs. Tried it with the gunk in it and it turned, cleaned it and it purred. Put it back together and works fine.
May be a defective thermostat or heater core
you would have to see a mechanic about that problem
Assuming you want it to blow hot, it could be low on coolant, a stuck open thermostat, a plugged heater core or a faulty temp blend door.
Check for low coolant
Mercury did not blow up.
Low Coolant? Bad thermostat? Heater core plugged or restricted? Heater core airbound? Heater control cable not working?
it should exit somewhere thru the firewall into the engine bay. pull it back into the cabin, and blow out the water. it should exit somewhere thru the firewall into the engine bay. pull it back into the cabin, and blow out the water.
heater will not blow on a 1996 ford contour
if the heater does not blow out warm air change the setting.
Plugged heater core. Try flushing it.
if youre trying to turn the heater on and cold air comes out, then its most likely the heater core
Probably because coolant level is low