Hi there,
When I lower my vacuum head closer to the carpet, I hear a change in that the roller is definetly hitting the carpet, but I do not hear that the sound of the motor has changed. Am I missinterpreting the sounds or should there be a disctinct change in the motor sound and not just the sound of the roller spinning against the carpet.
The sound of the motor should sustain a fairly constant audible level, even when changing surface options. The motor should only change its sound emission if a restricted airflow is encountered,i.e, a plugged hose from a foreign obstruction, a full dirt or air filter,etc. Also, if the roller brush belt breaks, the sound should also increase due to the motor running at a higher RPM
Get to know your normal sounds and when you hear it sounding differently, investigate immediately to find the cause.
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