Maintenance and care

When to change the dustbag

Change the dustbag when the colored marker in the dustbag change indicator fills the display.

The dustbags are disposable and intended to be used only once. Do not attempt to reuse.

How the dustbag change indicator works

The indicator is designed to show when the bag is full of common household dust and measures the amount of air flow through the dustbag. Normal household dust is a mixture of dust, hair, carpet fluff, threads, sand etc.

However, if fine dust, such as drill dust, sand, plaster or flour is vacuumed, the pores of the dustbag become blocked. The marker will indicate that the bag is "full" even when it is not. The dustbag should be changed as the suction power is greatly reduced.

If the bag is bulging with pet fur, hair, carpet fluff etc. the indicator may not register "full". This is because the air flow of the dustbag may still be high enough not to activate the marker to show maximum. The dustbag should still be changed.

Checking the dustbag change indicator

^Attach the floor brush to the vacuum cleaner. Perform this test with the floor brush only, other attachments can affect the function of the dustbag change indicator.

^Turn the vacuum cleaner on and select the highest power setting.

^Lift the floor brush a little off the floor. If the marker completely fills the indicator window, the dustbag needs to be changed.

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Miele S 500 When to change the dustbag, How the dustbag change indicator works, Checking the dustbag change indicator