Question about Broan-NuTone VX475 Bagged Central System Vacuum

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Is there any known do-it-yourself fix for the nutone vx-550 overheating problem?

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There is a way to do it, yes. However, are you sure that the PC board inside is not what is causing the problem?? I mean, are the lights on and function normally when you turn the switch on or off??

If so you can proceed to bypass the two thermal cut offs located on the field coil on both sides of your motor inside. Yes, it can be done without taking the motor apart.
Also, move the other thermal next to the motor and attach it to the housing near the back of the machine. DO NOT remove it unless you absolutely need to. IE test the unit and let it run for approx 20-25 mins. if it does not shut off there is no problem with the last thermal cut off. If it shuts down within 5 mins, take it out too. It could be faulty now.

Good luck,
Mark

Posted on Nov 11, 2010

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