Kenmore central Vac - where to connect low voltage wires?
The house we recently moved into has a central vac system - however, the Kenmore unit was mounted on the wall but not connected?!?! All tubes are now connected, but I do not know where to connect the low voltage wires onto the system. Any suggestions? Model # S107
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No, there is only two possibilities. One, the low voltage wires are touching somewhere in the system or two, the relay is stuck in the on position. To find out which it is disconnect the low voltage wire from the unit (theres two clips on the side) and then plug the canister in. If the it still runs with the wire disconnected then it is the relay board. If it doesn't then it is the low voltage wiring in the system. Good luck!
If this is a CENTRALUX metal bodied 1590 series vac vac there is a reset breaker on the side of the motor housing of the vac. Depending on the age of the vac there is also a filter lockout switch . If you are using a cartridge filter and it is misaligned and drops down the switch will shut the vac off to prevent motor damage. Check those two items. The internal filter must be fully inserted so its twist lock/washer device can rotate holding it up in place. Then take a pair of insulated pliers and short across the low voltage terminals where the wiring system enters the top of the vac . If the vac starts, it is fine. If not your problem lies in the motor , the relay or the filter lockout switch. If you have a plastic bodied Electrolux, a recent model the test procedure is the same but there is not the same lockout for the filter
Next test the nearest inlet in the house. If it fails to start you have a break in your internal wiring, possibly at a connection or a an inlet which may have a loose wire connection behind the wall. Post back with your results and if you have more questions. If so post the model #
You main low voltage line from the vac to the house is likely disconnected. Start by looking at the connection where the small wires enter the vac. Touch across those two wire terminals with a screwdriver or needle nose pliers and the vac should start.If it does, inside the home those same wires run along your pie to each inlet. Somewhere along the pipe path the wires have been disconnected or broken.. Think back to any area where work has been performed or face plates removed for painting, etc. Remove each inlet one at a time and look for a loose connection on the screw terminal at the back of the inlets. When reinstalling be certain each wire is tidy and connected to only one screw terminal at the back of the inlet. Once all inlets are connected in line you will have a complete circuit back to the vac. Post back with results
If the switches on the hose will not turn off the vac you have a short in the wiring of the vac pipe system or a defective relay on the circuit board. Plug the vac in again without the hose and disconnect the thin low voltage wiring were it plugs into or screws onto the vac. If the vac continues to run once disconnected from the low voltage circuit you have a defective relay in the vac itself. Some are circuit board mounted , others freestanding. To avoid a service call you can take the tank off the wall and take it to a pro shop or remove the top hosing if you are confident and check out the relay for a replacement part. If the vac stops your issue is in the house. Has any painting been done or any inlets removed lately.. check that area first for a short at the inlet. Go back to any and all inlets and remove them one at a time checking the mounting screws and backing plates for loose wiring which is touching either the metal inner wall plate in the wall or a common screw . Test the vac as you go. If this does not help, you will need to examine the wiring in the house , running along the pipe. Again if anything has been disturbed recently, near the vac, or near any piping that would be your first suspect area. Post back to advise.
Disconnect the thin low voltage wiring between the vac and the rest of the house. If the vac continues to run you have a defective relay in the vac motor housing. If the vac stops you have a short in the wiring in the house, likely behind an inlet in the wall. If any inlets have been disturbed for painting or renos lately that would be the first spot to look in the house for a problem. Look for wires behind the inlet valve which are touching against each other or a mounting screw or against a metal mounting plate behind the inlet. Start at the last inlet used. Be careful not to loose the spring under the screws where the wiring attaches to the inlets
Start with this. Unplug the vac to shut off, then disconnect the low voltage wiring at the vac.Plug the vac back in. If the vac still runs you have an internal short on the relay or wiring inside the vac. If the vac stops then the vac and final wiring is OK and the problem is in the wiring in the house. Have you removed any inlets for painting or had any renos done or pictures hung. If so undo what you did last. If inlets were disturbed remove them and look for low voltage vac wires touching metal backing plates in the wall or touching the inlet mounting screws. If you have done a reno or hung pictures you may have pierece the wire for the vac creating a low voltage short which will keep the vac running until removed. I have seen this happen with freshly installed 1/4 round molding along a baseboard
Define hose works or doesn't, no suction, hose will not activate vac , etc. Test the vac by shorting across the low voltage terminals where they enter the machine. If the vac works here your problem is in the internal wiring, at the valve or the hose to wall connection. If the vac will not run, you will need to check the motor for continuity across the motor leads.
The first thing I would do is to disconnect the low voltage wires from the unit. Does the unit continue to run? If so, it's probably an internal relay sticking in the unit. You can fix this yourself is you are handy, but I suggest calling your local dealer if you have any doubt. If the unit doesn't continue running, than you most likely have a short in low voltage wiring in your house. Check your inlet valves first by removing the screws and looking behind the faceplates. If you have inlets that are powered with 110v for you power nozzle (Supervalves, or Electravalves), be very careful as you could be exposed to 110vac. Check your vacpans too, if you have any. The wires should not be touching anywhere. If the two wires touch, the machine should come on. Good Luck!!
It is possible that the low voltage wiring that controls your central vacuum has been damaged during the cable work. You can check to see if the low voltage relay is working by shorting the two terminals together at the unit. Just disconnect the two small (18-22 gauge) wires from the unit and short across the terminals where the wires connect. If the unit comes on, the vacuum is fine, and it is most likely the low voltage control wires that have been damaged. It should be a pretty easy fix, if you can get to where the wires are located. They are probably just pulled apart at a joint. Good Luck!!