Caution: The fan draws outside air into the gutter. There is a grille on the inlet pipe. Despite this, small leaves may get into the fan and produce annoying noise when it is running. In this case, you need to detach the plastic bracket on the grill, remove the grill and try to remove foreign objects from above.
Troubleshooting Fan Motor
If the fan does not work in any switch position, check the fuse first.
If, despite a working fuse, the windshield wiper also does not work, the cause may be in the contact unloader relay.
Clear access to the fan motor.
Disconnect the plug on the fan motor, connect the two auxiliary wires to the contacts that are now visible.
If the fan motor is good, it should run at full speed. If not, replace it.
If the fan only runs at full speed, the overheat fuse on the resistor board may be blown.