4.6 Periodic inspection and cleaning (approx. 3,000 hrs)
4.6.1 Cleaning the combustion air fan
(Pos. G
⇨ See "Periodic inspection and cleaning" [page 42]
)
❒ Clean any dust and deposits from the protective grating
❒ Remove the protective grating and clean the fan with a soft brush where
necessary
4.6.2 Checking the seal of the cleaning port doors
(Pos. H
⇨ See "Periodic inspection and cleaning" [page 42]
)
1. Open the reversing chamber door
2. Check that the fibre-glass seal of the cleaning port doors is perfectly aligned on
the door frame
– Imprint on the fibre-glass seal or ceramic packing
If the imprint of the seal is broken:
❒ The seal is no longer guaranteed
❒ Replace the fibre-glass seal or ceramic packing
Servicing
4
Periodic inspection and cleaning (approx. 3,000 hrs)
Operating Instructions | B1300015_en
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