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  1. Open the cover of the device and remove the 3 Torx screws. Then pry off the two wheels with a flat screwdriver. Now bend open the clip at the marking with the flat screwdriver. Unfortunately it's a bit stiff. The clip on the other side will losen with a little force when you pry off the housing cover. Open the cover of the device and remove the 3 Torx screws. Then pry off the two wheels with a flat screwdriver. Now bend open the clip at the marking with the flat screwdriver. Unfortunately it's a bit stiff. The clip on the other side will losen with a little force when you pry off the housing cover. Open the cover of the device and remove the 3 Torx screws. Then pry off the two wheels with a flat screwdriver. Now bend open the clip at the marking with the flat screwdriver. Unfortunately it's a bit stiff. The clip on the other side will losen with a little force when you pry off the housing cover.
    • Open the cover of the device and remove the 3 Torx screws. Then pry off the two wheels with a flat screwdriver. Now bend open the clip at the marking with the flat screwdriver. Unfortunately it's a bit stiff. The clip on the other side will losen with a little force when you pry off the housing cover.

  2. First, I measured the winding of the motor on the black and blue cable. The engine has a passage. I bent the carbon brushes (copper tubes) and checked the length. With 3 cm still like new. I measured the connection cable from the plug to the two contacts on the cable roller. I examined the board for charring, especially the condenser (also for deformation). Finally, I checked the passage at the two solder points of the white switch. That was the problem. There was no contact.
    • First, I measured the winding of the motor on the black and blue cable. The engine has a passage. I bent the carbon brushes (copper tubes) and checked the length. With 3 cm still like new.

    • I measured the connection cable from the plug to the two contacts on the cable roller. I examined the board for charring, especially the condenser (also for deformation).

    • Finally, I checked the passage at the two solder points of the white switch. That was the problem. There was no contact.

  3. The white lid of the switch can be lifted off very carefully with a flat screwdriver. Then work on the 4 contact points with fine sandpaper until they are blank again. Go over them 2 to 3 times and you're done. Put it together and check the passage again. During reassembly, make sure that the rotary switch installed in the housing with its elongated nose slips back into the green marked rotary potentiometer on the board. The clips marked in green will snap back in during assembly. The 3 Torx must be screwed back in.
    • The white lid of the switch can be lifted off very carefully with a flat screwdriver. Then work on the 4 contact points with fine sandpaper until they are blank again. Go over them 2 to 3 times and you're done. Put it together and check the passage again.

    • During reassembly, make sure that the rotary switch installed in the housing with its elongated nose slips back into the green marked rotary potentiometer on the board.

    • The clips marked in green will snap back in during assembly. The 3 Torx must be screwed back in.

Conclusion

To reassemble your device follow the steps in reverse order.

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Andreas Reheis

Member since: 03/19/2017

526 Reputation

4 Guides authored

2 Comments

Sehr gute Anleitung hat mir sehr geholfen. Bei mir waren die Kohlebürsten ohne Durchgang, da zu weit vom Motor entfernt. Mit einem Schraubendreher wieder in Position gedrückt, schon läuft der Motor wieder.

Uwe K. - Reply

Wie gut. Viel Freude mit deinem selbstreparierten Staubsauger!

Fabian Neidhardt -

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