See also:

Trailer brakes
If your trailer is equipped with a braking system, make sure it conforms to federal and/or local regulations and that it is properly installed. WARNING Never connect a trailer brake system directl ...

Battery
If the battery is not fully charged during extremely cold weather conditions, the battery fluid may freeze and damage the battery. To maintain maximum efficiency, the battery should be checked ...

Fan speed control
Turn the fan control dial left or right to manually control the fan speed. Press the OFF button to turn the system off. Press the AUTO button to return to automatic control of the fan speed. ...