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Re: vac running and won't shut off
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!!
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If the motor is turning on then the issue is one of three things blocked exhaust, blocked intake or the fan that moves the air is loose on the motor . The last doesn't happen as much but can. First thing is to make sure the safety ball hasn't become stuck in the intake line. ( this ball stops water from reaching the motor when using it in a wet environment.. If the machine was knocked over while running or was used to suck up water the ball may be stuck) to fix this , remove the wheels from the bottom of the canister , with the machine off raise it and bang it on the floor several times . If you hear a ball drop then that was your issue. If not Disconnect the hose and see if you have suction at the intake. If you do the problem is a blocked hose. Reverse the hose and try sucking the other direction. If the exhaust is blocked the Vac will come on but the machine will sound like it's under load. Try running it without the filters ( do not use in dirt until filter is cleaned and replaced.,). To check the suction fan requires unplugging the Vac from the wall and opening the motor shroud . Locate the fan , see if it is damaged or loose.
There is a switch somewhere close to where you plug in the hose. Check and see if the switch is stuck in the down position. If so, it will either need to be replaced or cleaned to allow the switch to raise to the off position.
usually caused by a stressed out motor..... clean the hell out of it... hose, filters .... everything...there could even be crud down in the motor itself... which requires taking the vac apart and pulling out the motor...dont be afraid to take hoses off and wash them out and dry them before putting them back on.
It sounds like you have a blockage somewhere and the air is not passing over the motor to keep it cool. There is usually a thermostat mounted either on or near the motor. The blockage can be anywhere from the elbow ( the swivel part of your carpet sweeper if you have a canister vac) up thru the hose.If you have a canister vac, use a broom handle to push through the hose to clear the blockage. DO NOT ! use a coat hanger or anything that will cut or tare the hose. There are electrical wires in it that have 120 volts and causes quite a shock !
If you have an upright vac, start with the duct hose that comes from the part with the brush up to the hose and on to the main canister of the vac
If this does not work, take your vac to a reputable vac shop for repair. Hope this helps,
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.
Sounds like the relay that is in the central vac unit is stuck to the ON position. When you plug it back in..does it start right up ? If so.. You should be able to disconnect all the receptacle feeds to the central vac unit at the central vac unit to determine which one ( if any) is calling for the vac to stay on.. if none are.. then it is internal to the vac and may be a stuck relay... Hope that gives you some ideas to check...
http://www.geeksquad.fixya.com/ThreadView.aspx?prdid=0&thid=564116 Generic problem for all Vacuums How to connect the vacuum Posted by herpor on May 02, 2008 How to connect the vacuum system in the swimming pool Hello, This is not a problem that I can help you with, you need to contact someone in your area that deals with swimming pools and they have vacuums that are specially designed to do the swimming pools and they can better direct you in what to do. Don – The Vac Man Go Ahead.Use Us.