Having problems with your Broan-NuTone CV750 Central Vacuum ?

The CV750 stopped working. It will come on sometimes but most of time it will not work. I installed new bag and cleaned filter. Green light on side of unit is on. Switch on side of unit will not make it come on either.


Answers :

My CV750 comes on but makes a very loud noise. it sounds like something is stuck then it lets loose but the noise sounds terrible and the unit smells warm. I installed a new bag and cleaned filter. Green light on side of unit is on. Switch on side of unit turns the unit on and off. It comes on every time... i wonder if there is a belt loose something inside of the unit is off track?
The motor may have a sticking brush or a dead commutator segment. Turn off power to the unit to check for sticking brushes. Reapply power, does it now run? If not, shut it off, physically turn the motor a few degrees, and reapply power. If it still doesn't run, look for loose wiring around the motor. If it does run, replace the motor armature or the entire motor if the armature is not available as a separate part.
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