See also:

Cleaning the Video Screen
Use only a clean cloth dampened with clean water. Use care when directly touching or cleaning the screen, as damage could result. ...

Wheel Replacement
Replace any wheel that is bent, cracked, or badly rusted or corroded. If wheel nuts keep coming loose, the wheel, wheel bolts and wheel nuts should be replaced. If the wheel leaks air, replace it. S ...

Manual Operation
(Fan Control): Press these buttons to increase or decrease the fan speed. Pressing either fan button while in automatic control places the fan under manual control. The fan setting remains displayed ...