Question about Broan-NuTone VX475 Bagged Central System Vacuum
Shuts off after 2 minutes
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: Nutone CV 450
If the top comes off, it will be by the motor and exhaust. Just replace it with the new one, make sure you don't mix up any wires. Also unplug it from the AC first.
Posted on Jun 22, 2008
SOURCE: Nutone central vac vx550
It's a known problem. I bought my vx550 last year in July and it stopped working this year in May. On for 5 minutes, shut down, can't run for a few hours, runs for another five minutes, etc. I called the Nutone customer service department and they exchanged the unit for a new one, cross shipped, via UPS. Mine was still under warranty though. It has to do with some defective thermostat or controller in the electronics of the vacuum.
Posted on Sep 12, 2008
The relay that turns the machine off from any of the several places where you connect, is probably stuck.
The relay is operated by low voltage. When you connect your hose, you comlete the low voltage circuit and energize the 110 volt system, and the machine comes on. When you pull the hose out, the relay is suppose to release.
those are my thoughts
I hope this is of value to you.
Posted on Sep 27, 2009
Here is a link to help you find a local dealer:
Posted on Dec 31, 2009
SOURCE: nutone vx550c central vacuum
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:)
Posted on Mar 29, 2011
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