If the fan isn't blowing, check the fuse. Consult your owners manual for its location. If its not the fuse, its probably the switch or a relay. Take it to a mechanic.
If the fan goes like crazy, but very little or no air comes out. It may be the air filter is clogged. Consult your owners manual for its location or if you like, those Jiffy lube guys can usually replace it for you.
If the fan blows fine but its not blowing hot air....
Check your coolant!
Nine times out of ten, when someones heat stops blowing hot air, it is because they have neglected their cooling system and there is not enough coolant flowing through the system for it to fill the heater core. Driving the car in this condition can damage the engine. Check your antifreeze and fill it up.
SAFETY TIP: NEVER open a radiator cap when the engine is hot! Wait until the cars cools before you check your coolant level.
You can not get heat from cold water, The engine has to run long enough to get the water in the engine HOT. That is were you get heat from HOT WATER-- Coolent
your car will over heat and you might blow your head gasket
If this is about a car: the heater in a car is basically another radiator, but this one sitting inside the car. When you turn the heater on you draw heat from the engine and into the car. If you aren't running the car hard enough the temperature in the engine will drop.
your car will over heat and you might blow your head gasket
No. Not enough heat. Heating pads with pillows over the top might work. Or something with a lot more heat that can be made off it might work!!
The heat might be used.The heat might be used.The heat might be used.The heat might be used.
If the break is strong enough to prevent the car moving the and the clutch is not disengaged or being feathered, it will stall. If the break is not strong enough to prevent the car moving the car will move but the breaks will begin to heat up.
my ml500 does not give enough heat inside
Yes, if your low on antifreeze, there may not be enough to fill the heater core, and you wont get any heat. If your heat is not blowing that should be the first thing you check.
One disadvantage of having inexpensive car insurance is that you might not have enough coverage.
The air mix door is stuck in the heat position
You could be leaking coolant, your blower fan might not be working, etc.