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Author Topic: Are these bad motors  (Read 1172 times)

Offline tangotonyb

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Are these bad motors
« on: April 24, 2019, 06:04:09 PM »
Picked up a cheap DC24 that works fine, but makes a strange sound when it is turned off. As the motor dies, it emits a kind of groaning sound.

I investigated and noticed that if I held the motor filter tighter against the motor, the sound went away. Without the filter in place, the motor sounds fine.
I swapped the filter for another one from another good machine, and it didn't make any difference, so it seems it's not the filter that's to blame.

Any ideas please?

Online MVacs

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Re: Are these bad motors
« Reply #1 on: April 24, 2019, 06:13:38 PM »
They do that. A new filter is probably the easiest answer.

Offline tangotonyb

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Re: Are these bad motors
« Reply #2 on: April 24, 2019, 06:43:59 PM »
Ok thanks - I had another old filter I swapped in and that cured it. Tried the faulty filter in my good machine and that resulted in the same noise, so yes - filter is to blame.

Offline Dysonboy

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Re: Are these bad motors
« Reply #3 on: April 25, 2019, 05:05:45 AM »
Ok thanks - I had another old filter I swapped in and that cured it. Tried the faulty filter in my good machine and that resulted in the same noise, so yes - filter is to blame.
Deffo filter - I picked one up cheaply recently. Filter was being a pain with the noise so temporarily for the time being its not in the machine.

It not needed for it anyways and just makes the air cleaner soo
Collector and restorer of most vacuum cleaners including vintage, older style models and newer models. Seller of refurbished vacuums and vacuum parts Livin' every day, as if it were the last!

Offline TV Man

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Re: Are these bad motors
« Reply #4 on: April 25, 2019, 02:08:56 PM »
I found its air escaping around rubber seal causing the effect ,High pitch drone if the filter is clean try removing rubber gaskett and soaking it in boiling water for 5 mins that may rejuvenate the rubber to make better seal.

Online ryevac

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Re: Are these bad motors
« Reply #5 on: April 25, 2019, 07:57:43 PM »
It will probably bounce on ya... just fit new filter as stu says.
The only way to fail is not to try.


 

 

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