Author Topic: Noisy DC23 (Read 5785 times)

__russ__ · « **on:** December 17, 2013, 03:45:27 pm »

I've got a DC23 Allergy that's cleaned up nicely but makes a horrible whine once switched on.

Visually everything looks ok and suction is excellent so at a bit of a loss

Any suggestions? Filter looks ok but wondering if it's not seating properly - don't have a spare to rule that out though!

Hoping someone might have come across this before

MVacs · « **Reply #1 on:** December 17, 2013, 09:59:19 pm »

Did you take out and bench test the motor?

Debris down the intake is the usual suspect if you didn't.

__russ__ · « **Reply #2 on:** December 17, 2013, 10:52:39 pm »

Quote from: MVacs on December 17, 2013, 09:59:19 pm

Did you take out and bench test the motor?

Debris down the intake is the usual suspect if you didn't.

Interesting thanks for that

Yes I had the motor out to check it ran good but didn't think/know to check the intake.

Bit of a pain as not the easiest cylinder to take apart but will have another look tomorrow!

MVacs · « **Reply #3 on:** December 18, 2013, 05:07:44 pm »

We find kinds tend to stuff things down the intake quite often. Felt tips and crap like that makes odd noises sometimes.

Vacuum Cleaner House · « **Reply #4 on:** December 18, 2013, 09:48:37 pm »

Take out the hepa filter, If it has the moulded rubber seals on either end then get a new one. The rubber seals can leak air after a while. The new hepa filters with sponge type rubber on either end replacing the moulded rubber seals they no longer whine like this with the new one.

Vacuum Cleaner House · « **Reply #5 on:** December 19, 2013, 01:09:23 pm »

Here are the dc23 hepa filters , Old style left new style right

__russ__ · « **Reply #6 on:** December 19, 2013, 02:01:21 pm »

Quote from: Vacuum Cleaner House on December 19, 2013, 01:09:23 pm

Here are the dc23 hepa filters , Old style left new style right

Brilliant, thanks for that

I'll have a look and let you know which style I've got - can believe the cost to replace though, even trade prices

__russ__ · « **Reply #7 on:** December 20, 2013, 09:40:35 pm »

Quote from: __russ__ on December 19, 2013, 02:01:21 pm

Quote from: Vacuum Cleaner House on December 19, 2013, 01:09:23 pm
Here are the dc23 hepa filters , Old style left new style right

Brilliant, thanks for that

I'll have a look and let you know which style I've got - can believe the cost to replace though, even trade prices

Yes I have the old style HEPA filter - removed the filter, switched on and the noise disappeared

What I did do though was pull the larger rubber seal up so it sat right at the top the groove and when I refitted it like this, the whine was still gone.

I think just pulling the rubber seal out 1-2mm was enough to make it air tight again.

Will run it for a few days just to check the whine doesn't reappear but hopefully sorted without the expense of a new filter.