it could be the fans motor
2004 mercury grand marquis fan stop working
Temperature senor broke, fan motor quit, fan motor not getting power.
You Buy A New One
Check fan fuse, thermal relay, fan motor. Replace as necessary.
One reason why an AC heater fan will not work on a Mazda 3 is that the fan is burned out. It will have to be replaced. However, first check to make sure that you have not simply blown a fuse.
Check for blown fan motor fuse.
The thermo fan sensor is on the thermostat housing, right below the distributer.
Has the fan stopped blowing or is the air coming out cold? Need more info please, make model, year and such.
vacuum leak?
The fan relay could be bad or the fan motor could be bad.
There is no fan belt on a Mazda Miata.
the radiator fan stopped working on my 98 dodge dakota. it sounds like it tries to kick on but wont turn. what could be wrong if it is a relay, where is it?