Hi recently replaced height adjuster motor because vacuum was stuck with brush bar in highest position. Worked ok for a while. More recently the Hoover was vibrating and noisy . Stripped off outer cover to discover belt sensor unit was rubbing the PCB board and then found it was grinding on base plate as well. Is is ok just to replace belt sensor unit or is there likely to be a larger problem. The belt drive sensor unit grey disc appears to be distorted and doesn't sit concentric on its shaft. Type 4 belt sensor unit.
Thanks for any help or advice.