Testing motor of vacuum cleaner

[tenheads]

My brother has given me his faulty vac withe old "here you are, your a leccy fix this"
Anyway now have it in bits in front of me IR tested the mains wire once disconnected from motor and its ok, tested between the terminals on the motor with some steinels and its belling out, does this mean the motors goosed? Im thinking yes but just want some confirmation.
cheers guys

 

[Baal]

What was your reading?
I'd expect around 50 Ohms for a healthy 1kW motor

 

[ringer]

Try measuring the resistance with a meter. As a VERY rough guide, check the wattage of the hoover and calculate using ohms law what it (roughly) ought to be. E.G. for 2kw motor 230^2/2000 = 26Ω
But if it is open circuit, then yes it probably is kaput.

 

[tenheads]

tested the motor getting 6.18 ohm so at a guess knacked correct?

 

[ringer]

yup, sounds like it is shorted part way round the winding. Replacement motors are approx £70, new hoovers approx £150

 

[tenheads]

skipped it cheers pal !