Maintenance
10-1
BA9300SU EN 2.1
10 Maintenance
• The controller is free of maintenance if the prescribed conditions of operation are observed.
(
^
3-2)
• If the ambient air is polluted, the air vents of the controller may be obstructed. Therefore,
check the air vents periodically (depending on the degree of pollution approx. every four
weeks):
Free the obstructed air vents using a vacuum cleaner.
Stop!
Do not use sharp or pointed tools such as knives or screwdrivers to clean the air vents.