- This topic has 4 replies, 2 voices, and was last updated 11 years, 7 months ago by
.
-
Posts
-
Hello there, I have a burnt out rotor on an WAE28363GB/02 washer and I can see that I can easily purchase a replacement motor. However, due to the nature of the fault, less than 2 meg earth insulation resistance, which obviously knocks out the main RCD I would like to know if there’s the possibility that other components may have been damaged such as speed control etc. Hope you can help, thanks very much, David
Re: Bosch classixx 6 1400 express
most of the times the board survives unless its gone with a bang
you say you have less than 2Mohm resistance but before you condemn it take the armature out of the motor and blow carbon dust off armature and brush gear. sometimes the dust get where it should not be especially in damp conditions. Then test again but it got to be lower than 0.5 M Ohm at 250v (9volt meters somtimes show higher readings) to blow your trip
Re: Bosch classixx 6 1400 express
Thank you very much for your reply. I will have a closer look at the motor before condemning it!! The machine is located in a garage but doesn’t seem to be affected by damp conditions. After I’d removed the half worn brushes I re-tested the motor and the earth fault had cleared, maybe your suggestion of carbon dust being fairly well distributed around the motor casing may be the problem. Thanks again, David
Re: Bosch classixx 6 1400 express
if fault clears with brushes out then it does look like your armature has failed
Dave
Re: Bosch classixx 6 1400 express
Thanks again for your reply. I removed the motor and it is as you said, the rotor is the faulty part, 0.05megohm to earth but nothing obvious to the naked eye, no burnt segments on the commutator or charred windings. probably not a good idea to dismantle motor to fit another rotor if they are available? I’m tempted to order a new motor but still uncertain if the rotor failure may have caused other problems. Anyway, thanks again for your help. Cheers David
- You must be logged in to reply to this topic.