I have a Nutone central vacuum in our home and we have not used it in months. When we run our dishwasher, the vacuum ports have strong suction. And the vacuum is never even turned on. One of our ports has started to leak brownish greenish liquid. Again all of this is happening and we don't even use the vacuum system. We switched to an upright vac several months ago when the vacuum system was clogged and stopped working. Any help? Thanks
I agree your dishwasher should have nothing what so ever to do with a central vacuum the piping is completely seperate. sonds to me like somone really screwed things up. i would get someone out there to look at that ASAP.
Dear lord, that is the most absurd thing I've ever heard. Who installed the Vac and DW or were they both in the home before your time?
Normally, if liquid drips out of a CV outlet it's because it was sucked up during vacuuming. However, if your vacuum runs or has suction at the outlets due to the dishwasher running, you have a low voltage gap being bridged by either the dishwasher's wiring or by liquid leaking from it onto the CV wiring somewhere.
Bottom line, you have MAJOR issues inside your home with one or both of the systems, and if there's liquid, there's a dishwasher to be worried about! Look below it for leaks into the basement/lower floor; follow the plumbing (especially the drain waste runs) and figure out where the damage is before your house suffers the lot.
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Some units have an on/off switch on the power unit itself. Check to make sure that is not turned on. Unplug your power unit and remove the 2 low voltage wires (not the power cord itself) . The low voltage wires start at the unit and run throught your home and attach to each hose inlet. They are usually attached to the unit by simple wire terminals or wire capped to small wires coming out. Just unlug the terminals or unscrew the wire caps and pull the connections apart. Plug your machine back in. If it still comes on the problem is the relay or circuit board/switch/ relay assembly inside the unit. If it doesn't come on with the low voltage wires unattached then you may have two wires touching somewhere in the low voltage wiring.
You need to determine if this is a problem with the hose or the unit. I would recommend plugging my hose in the wall sideways. This should make your central vacuum run continuously. If the unit doesn't cut on and off it is the hose. If it still cuts on and off it is probably the relay.
most of those systems are plumbed with PVC, but some do use flex throughout the home...
If yours is PVC, visit your nutone dealer and get a new outlet/elbow.
Trim the old elbow off with a drywall saw or other small saw (if you have a sawsall, that is fine) and glue the new one in
if it is flex tubing, it's easier; the elbow threads on. just be sure to hold the tubing so it doesn't drop down,
My guess would be that the motor is done. Impossible to diagnose for sure without seeing it of course. If you were happy with the unit before the trouble, a replacement motor will probably run $250-$300. If you are interested in a new unit, shop around. There are definitely better designed and more powerful units out there, although some of them can cost quite a bit more than $300. Good Luck!!
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.
Disconnect the inlet piping from the unit and check the suction there. Be sure that the utility inlet on the unit is closed. If you have good suction, you have an open/broken pipe somewhere, or possible an inlet valve or vacpan that is not sealing when closed. The easiest way to find it would be to install your tubing back into the inlet of the unit, turn the unit on, and walk around the house listening for air leaks. Good Luck!!