Miele

Miele Complete C3 PowerLine

Answers and step-by-step fixes from the official Miele manual.

What does the indicator light show?

• Airflow indicator fills completely red: Filter bag is full. The colored marker in the airflow window has filled up, meaning airflow through the bag is too low.
• Exhaust filter change indicator turns fully red: Exhaust filter needs replacing. The red marker on the left of the display has filled in, showing the exhaust filter has reached the end of its life.
• Service indicator light comes on: Time for a filter service. After about 50 hours of use, roughly a year of average use, this light comes on to remind you to check the filters.
• Warning light comes on and vacuum shuts off: Vacuum has overheated. A temperature sensor has switched the vacuum off because it got too warm, usually from a blockage or clogged filter.

Common problems

The vacuum shuts off on its own

1. Is something blocking the suction hose? Turn off and unplug the vacuum, then check the hose for an object stuck inside it.
2. Are the filter bag pores clogged with fine dust? Fine dust such as drill dust or flour can block the bag's pores and cause overheating. Replace the bag.
3. Is the exhaust or dust compartment filter heavily soiled? A very dirty filter can also cause the vacuum to overheat and switch off.
4. Let the vacuum cool down Once you have fixed the cause, let the vacuum cool before using it again.

Suction power seems weak

1. Is the filter bag full? Attach the standard floor brush, switch to the highest power level, and lift the brush slightly off the floor to check the airflow window.
2. Have fine particles clogged the bag's pores? Drill dust, sand, plaster or flour can block the bag even if it isn't full of normal dust.
3. Is the exhaust filter indicator fully red? A worn-out exhaust filter reduces suction power and filter performance even though the vacuum still runs.
4. Is the floor brush hard to push across carpet? This can also happen with normal use on thick carpet. Lower the suction power setting.

The dust compartment lid won't close

1. Did you insert a filter bag? The lid is designed to stay open if there is no filter bag in the holder.
2. Is the filter bag caught in the lid? Reposition the bag fully in the blue holder before closing the lid again.
3. Don't force the lid shut Forcing it can damage the lid or the bag holder.

The floor brush is hard to push

1. Lower the suction power Press the minus foot switch to reduce power, which makes the floor brush easier to move.
2. Open the auxiliary air regulator This briefly reduces suction so the brush doesn't stick to textile flooring.
3. Check if the floor needs the bristles raised For floors with deep joints or gaps, keep the bristles raised rather than lowered.

Step-by-step guides

Change the filter bag

1. Lift the release button and open the dust compartment lid until it clicks into place.
2. Grasp the collar and remove the old filter bag from the holder.
3. Insert the new filter bag into the blue holder as far as it will go.
4. Unfold the filter bag inside the dust compartment.
5. Close the dust compartment lid until it clicks into place.

Replace the exhaust filter

1. Open the dust compartment lid.
2. Squeeze the release for the filter frame and open it until it clicks.
3. Grasp one of the two clean corners to remove the used exhaust filter.
4. Insert the new exhaust filter.
5. Close the filter frame.
6. If you fitted an Active AirClean 50 or HEPA AirClean 50 filter, press the exhaust filter change indicator to reset it.
7. Close the dust compartment lid until it clicks into place.

Clean the floor brush roller

1. Release the roller pin using a coin.
2. Push and take out the roller axle.
3. Take out the roller.
4. Remove all threads, hair and other debris from the roller.
5. Reinstall the roller and lock the roller pin back in place.