My 7-year-old Hoover washer-dryer's drum won't turn and I suspect it's
either the type-P55 motor or it's control circuit-board at fault. I've
taken the brushes out of the motor and they are quite worn and short
but are still touching the commutator (3 Ohms resistance between the
brushes) so I suspect that they are OK. The commutator has about 36
segments. Am I right in thinking that all 36 should not be in
electrical continuity with each other? Just opposite pairs I thought?
Well they are (again about 3 Ohms) - does this mean that the armature
windings insulation has broken down and the motor is scrap? Thanks.