JBL Cristalprofi e1902 canister filter noisy?

I have had my filter now for a year, it has been completely silent right up until 3 weeks ago. I cleaned the impellar and surroundings, after doing so it has been making noises and it is very annoying. I have tried a lubricant on the impellar and surround but this didn't do a thing. The filter is not old and... show more I have had my filter now for a year, it has been completely silent right up until 3 weeks ago. I cleaned the impellar and surroundings, after doing so it has been making noises and it is very annoying.

I have tried a lubricant on the impellar and surround but this didn't do a thing. The filter is not old and the impellar isn't damaged or in bad condition.

If you could give me any information as to how to stop this irritating noise, I'd be greatful.

Thank you.
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