could be thermostat or heater fan if you can hear all the speeds on the blower motor working then it could be your thermostat but your heater core might be plugged as well
have you checked your fuse? If it won't blow out the air it could be your blower motor.
The blower motor resistor is bad.
If the air conditioner in a Mitsubishi Legnum is not working, there could be a blown fuse. There could also be a loose cable, or a problem with the heater motor.
Probably the blower motor speed resistor is partially burned out.
The heater blower motor will most likely be located under the dash by the heater core assmebly, but first you need to be sure that that's the problem, it could just be wiring to the blower motor. Shouldnt be too hard to replace, and should be simple to find,
somtimes a mouse moves into the blower motor and makes a nest ?
If a heater fan is not working on a Toyota RAV4, the problem might be with the blower motor resistor. The blower motor resistor is either on the firewall next to the heater motor or in the dash on the passenger side above the heater core.
The blower motor resistor is defective. They go bad when the blower motor pulls to much amperage.
change the blower motor resistor . this controls the speeds . thanks paul
If the heater blower has humming noise when motor is running, first check its capacitor. If the capacitor is fine, then the motor is the problem and may need to be replaced.
the reason for water coming out from under the dash is that a hose could have broke or you have a problem with your heater. your heater works off of the water in the radaitor and since it gets hot from the motor well it serculates threw the heater and that's who your heater works