Having problems with your Broan-NuTone CV556 Cyclonic Bagless Central System Vacuum ?

Nutone Broan CV556 runs continuously and will not shut off until I unplug it.. I disconnected the low voltage wires and it still runs when I plug it in. Inside the top of the vacuum are 3 electrical devices - one looks like a transformer wire -- one is a rectangular electronic black box. The third is an on off rocker switch. Which piece it likely to be shorted out? It is about 8 years old.


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Repair Help & Product Troubleshooting for Broan-NuTone CV556 Cyclonic Bagless Central System Vacuum

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Nutone Broan CV556 runs continuously and will not shut off until I unplug it.. I disconnected the low voltage wires and it still runs when I plug it in. Inside the top of the vacuum are 3 electrical devices - one looks like a transformer wire -- one is a rectangular electronic black box. The third is an on off rocker switch. Which piece it likely to be shorted out? It is about 8 years old.


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