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Author Topic: DC44 No Power to Brushroll?  (Read 164 times)

Offline macman

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DC44 No Power to Brushroll?
« on: February 11, 2020, 11:07:15 AM »
This one has got me scratching my head. Machine came in with poor suction and cutting out. Charger was OK but battery shot. Brushroll didn't turn, as bearing seized. Also soleplate cracked, so rather than mess around trying to fix it, I ordered a new compatible head and a battery.
Fitted both, washed the cyclone.
The brushroll still doesn't turn. There is continuity through the wand, but even plugged directly into the main body unit, it still doesn't turn. Contacts on the main body seem OK, and I get continuity across those terminals, even without pressing the trigger.
The main motor runs fine.
Is there something else I should be checking please?


Online MVacs

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Re: DC44 No Power to Brushroll?
« Reply #1 on: February 11, 2020, 02:40:20 PM »
What output do you have from the machine?

Offline macman

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Re: DC44 No Power to Brushroll?
« Reply #2 on: February 11, 2020, 03:25:02 PM »
 I'm getting a big fat zero.... should be around 20V DC?
I forgot to say that I also checked continuity through the wiring on the bin: all OK.
There is no visible damage to the trigger mechanism either.
Unfortunately I don't have another compatible main body unit to test it with.

Offline macman

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Re: DC44 No Power to Brushroll?
« Reply #3 on: February 11, 2020, 05:35:10 PM »
Update: I managed to locate a compatible main body unit (DC34), and with that attached it all runs fine. So definitely a power failure to the brushroll terminals. I don't know of any way to fix this, which is frustrating when the main motor is still going strong.


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Re: DC44 No Power to Brushroll?
« Reply #4 on: February 12, 2020, 04:16:21 PM »
When we have had that its a new motor body.

 

 

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