5 Maintenance
Preserving operational readiness
Maintaining the heater or air condi-
tioning system
Replacing the filter mat
2
1
– Loosen the screw (1).
– Remove the cover (2).
1
– Check the filter mat (1) for contamination.
– If the filter mat is grey in colour, replace it.
NOTE
Change the filter mat at least every two
months.
Cleaning the fresh-air inlet
The fresh-air inlet must be cleaned if the filter
mat:
• Is damaged,
• Is incorrectly seated in the filter frame,
• Has not been replaced every two months.
– Remove the filter ma
t.
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