I want to know if anyone can maybe tell me if theres a suction fan of another brand vacuum cleaner that fits the vorwerk vk 120 or the vk117?and my vorwerk vk117 if the motor is starting up its making sparks and flames at the commutator, and the motor is turning slowly but after a while the sparks and flames go away and the motor is running at full speed, what can be the problem?
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