Having problems with your Broan-NuTone VX475 Bagged Central System Vacuum ?

Nutone vx550c central vacuum

\015 During operation vacuum shuts off. after motor cools down it begins to work.\015

Answers :

I finally solved the mystery. I adjusted the variable air intake relief valve (install just before unit-open in the event of a clogg to prevent motor burnout) By watching the valve when unit is being used, you can see that the system needs more air to operate, otherwise it drives up the amperage draw on the breaker and trips it. Just set the adjustable spring loaded valve so it can actuate up and down during normal use (you should hear air all of the time from the valve). Picture a big vac motor pulling air through a straw. It doesnt like it and needs more air while you are vacuuming. Happy as heck to fix this damn thing:)
I called them. They are sending a new unit. A+ for friendliness and helpfulness on the part of Nutone's customer service and tech folks.
Repair Help & Product Troubleshooting for Broan-NuTone VX475 Bagged Central System Vacuum

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