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No suction on lower level

Nutone central vac
no sucton on lower level second floor fine
ran fish tape but it does not go all the through
do i need to take pipe out

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Generic problem for all Vacuums
No suction on lower level
Posted by phil55555 on Apr 23, 2008
Nutone central vac
no suction on lower level second floor fine
ran fish tape but it does not go all the way through,
do i need to take pipe out.

Hello,
I would advise you to ALWAYS to FIRST UNPLUG YOUR VACUUM before beginning any service procedure.
Not @ first, try to get a central vacuum cuff and go to each and every inlet / outlet down the basement and put the cuff in the inlet – the central vac should come on and possibly might unclog the pipe, 2nd, try taking another canister type vacuum while the central vac is running and open the inlet door and try to “pull apart the clog in the pipe” – this does work upon occasion if not you can try a plumbers snake – but be careful because the walls of the pvc pipe are thin wall and you don’t want to poke a hole in the pipe or other wise you will have to replace the pipe. The absolute last resort should be to replace the pipe if all other do not work. Feel free to contact your local vacuum dealer in your area or in the yellow pages , or contact the factory @ the phone #’s listed below:
http://nutone.com --- Customer Service
NuTone Inc.
9825 Kenwood Road Suite 301
Cincinnati, OH 45242
In U.S.A. call:
1-888-336-3948 for Customer Service
1-888-336-6151 for Technical Support

In Canada call: 1-888-882-7626

Thanks, Don – The Vac Man
Go Ahead. Use Us.

Posted on Apr 23, 2008

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There are two components involved here, wiring and pipe.
Have someone go to the vac and turn on manually, briefly while you go to an inlet on the lower portion downstairs and open the door. Then shut the vac off.
If you have suction downstairs at this point with the vac turned on manually , your pipes are all connected and the issue is the wiring for the lower level of the house. It will need to be connected to the wiring from the upper level. A good installer will have roughed in the system with the necessary wiring running along the pipe from each inlet. You should find a piece of wire hanging beside the pipe at each of the lower inlets. This low voltage wiring will need to connect to the main line by colored sequence. Your problem may be as simple as a bad splice where the wiring connects to the main line , or a second wire hanging inside the wall behind an inlet which has either come loose or been omitted. Do not unscrew the connection screws at the back of the inlet screws fully where the wires connect as they contain a spring loaded terminal which may fall apart.

If you have no suction, the piping has either not been connected to the pipe from upstairs or your lower piping is clogged. You will need to trace back and find your main floor "drops" in proximity from below , then connect them into the balance of piping for the system, being certain to connect the wiring at the same time. Post back with what you find and if you need more help.
Last of all if you actually have moderate suction on the lower level, but not enough , you may have blockage in the lower line or a leaking valve door upstairs. If clogged you will need to use another vacuum a ad draw the blockage out at a lower floor inlet, generally the one closest to the vac.
Please post to confirm what you have found.

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