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Author Topic: dc04 intermediate working  (Read 3131 times)

Offline Tony Kenney

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dc04 intermediate working
« on: June 13, 2012, 12:00:56 AM »
I am experiencing problems with my Dyson dc04. When using for approx 1.5 Hours Dyson cut
next day used for outapprox 30mins cut out again then would not start at all. After 1 week plug Dyson
 in it fused the circuit.
 
Removed the motor checked the cable for breaks OK checked switch OK Bench run the motor
the first 2 mins motor tempreture 34C after 5mins tempreture running at above 50C the plastic
housing very hot.  Checked the brushes approx 2.5 millimetres showing  the whole assembly very
hot.
 
Would it be advisable to change the motor.
 
 
A.Kenney

Offline Dyson Tech

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Re: dc04 intermediate working
« Reply #1 on: June 13, 2012, 09:42:18 PM »
Is the motor sparking when bench tested?
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Offline Tony Kenney

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Re: dc04 intermediate working
« Reply #2 on: June 14, 2012, 06:17:36 PM »
No sparks from motor just running hot.

Offline Angus Black

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Re: dc04 intermediate working
« Reply #3 on: June 15, 2012, 12:55:13 AM »
If it fused your electrical circuit than I would suggest the motor has an internal short. Personally, I would test no further and swap the motor.

However, if you are determined, and have an ohmmeter, it should read around 7Ω across the motor terminals.

Offline Tony Kenney

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Re: dc04 intermediate working
« Reply #4 on: June 19, 2012, 01:48:17 PM »
The obvious fault was with the motor,I ordered a replacement it arrived on Monday (excellent service).Readings on both motors read the same approx 7ohms,the only conclusion appeared to be the thermal cutout, the motor when bench tested was reading over 50C, normal working temperature seems to be 35C.As the windings,armature,and brushes where clean and free from burning,could the terminal leads complete with the capacitor and cutout be sold as a separate piece of kit,this would save the cost of a fitting a new motor and for a few pounds could bench run for temperature overload.

Online MVacs

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Re: dc04 intermediate working
« Reply #5 on: June 20, 2012, 06:39:51 PM »
,could the terminal leads complete with the capacitor and cutout be sold as a separate piece of kit,this would save the cost of a fitting a new motor and for a few pounds could bench run for temperature overload.

We do have them on their own, but very seldom do people ask for them.

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