Probably due to the engine having a low coolant level.It may be an air pocket in the cooler lines if the vehicle was recently serviced. The air blend doors in the heater/AC unit may be having issues if the above checks out, this would require a lot of disassembly to diagnose.
you need to replace your heater core
it has a partially clogged heater core.replace the heater core
Not enough coolant is running through the system chek for leaks and chek your heater core
Your electric unit can blow fuses during the winter when you are running your heater for several reasons. The main reason would be that you have a faulty ground on your heater.
Low coolant, failed thermostat, partially plugged heater core...............
I enjoy running because it is fun.and you can feel the wind blow your hair while running. and you keep in shape.
heater will not blow on a 1996 ford contour
if the heater does not blow out warm air change the setting.
The heater does not blow air because it emits infrared rays that have heat molecules within them, thus releasing heat, not blowing it. A heater does not blow air becasue there is no moving air source within the heater. The heater emits infrered rays that cause heat to slowly flow out of the heater.
Low on coolant. Stuck open thermostat. Poor circulation (plugged heater core).
I wouldn't recommend it. Odds are that you'll lose coolant liquid through the heater core, which eventually can lead to the car running dry and overheating.
its loose