Question about Vacuums
Take out the handle from the bag housing and use your volt meter/circuit tester to test the main switch, if that and your power cord are good, then you might have a bad fuse, which is located on the brush side of the main chip board.
Bad cord or plug - number one electrical problem due to the abuse that these endure. Vacuum cleaners are often dragged around and even up and down stairs by their tails. Not surprisingly, the wires inside eventually break. Test with a continuity checker or ohmmeter. Squeezing or bending the cord at the plug or vacuum end may permit a momentary spurt of operation (do this with it plugged in and turned on) to confirm this diagnosis.
2. Bad power switch - unplug the vacuum and test with a continuity checker or ohmmeter. If jiggling the switch results in erratic operation, a new one will be required as well.
3. Bad interlocks or sensors - some high tech vacuum cleaners have air flow and bag filled sensors which may go bad or get bent or damaged. Some of these can be tested easily with an ohmmeter but the newest computer controlled vacuum cleaners may be more appropriate to be repaired by a computer technician!
4. Bad motor - not as common as one might think. However, worn carbon brushes or dirt wedged in and preventing proper contact is possible. See the section: " Problems with universal motors".
5. Bad internal wiring - not likely but always a possibility.
Hope this helpout , Good luck...
Posted on Jul 22, 2010
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Posted on Jan 02, 2017
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