Figure 1

Figure 2

Symptom: Loss of Suction

1.  Check to make sure the dirt canister is empty. If dirt canister is full, then you will experience reduced suction. Empty dirt receptacle.

2. Start by checking suction directly at the central vacuum unit. This will tell you if the loss of suction is due to a problem with your vacuum or elsewhere in your piping system or accessories.

   Try plugging your hose into the utility valve directly beside the power unit (if installed) and turn the unit on. Is there suction at the end of the hose? If yes then you know two things, (1) Your hose is not clogged and (2) there is a clog somewhere between your vacuum and the vacuum valves.

   If you don't experience suction directly at the central vacuum:

   • Could be a clogged hose - Solution: Turn unit "off", take the hose out of the inlet and reverse the hose so that the vacuum nozzle wand is in the inlet valve and turn the unit "on" using the on/off switch on the side of your Cana-Vac central vacuum (Figure 2 - Item 3). This should remove the clog.

   • Filter could be blocked. Try cleaning filter (DO NOT REMOVE). Your filter is designed to be maintenance free, however if vacuumed materials such as drywall dust have plugged the filter, simply wrap a garbage bag around the unit and reach inside with the bag and shake the filter. Wait a minute with the bag still snug around the canister to let the dust inside the garbage bag. Also try vacuuming the filter with a shop utility vacuum.

   • If you still do not have suction at your central vacuum please contact a local dealer
     

   If you have suction at your unit but not from at the valve: 

   Possible Cause: Blockage in your system.

   • If there is a blockage inside your wall piping don't fret. In most cases reversing vacuum with remove any clog. To reverse vacuum use a shop type vacuum at the valve or valves you are having a loss of suction at and insert the vacuum nozzle into the wall and turn on the vacuum. Be sure to either have the utility valve at the central vacuum unit open or dirt canister in the off position to allow airflow.

   • If that doesn't work, with the help of another person, using the same method as above, keep the utility valve shut or dirt canister in the sealed position. Build vacuum pressure then open the utility valve to release a flow of air. 

   Possible Cause: Puncture in piping or disconnected piping.

   • If you have determined that you have suction at the unit then there no reason you should not have suction at all valves. If this is the case and you don't have a blockage it could be as simple as a disconnected pipe. If the system was installed without the pipe being PVC cemented it could be a pipe has become disconnected or that the piping has been punctured by a nail or dry wall screw.

   • Please contact a local dealer

Symptom: Unit Will Not Turn "Off"

• Check the vacuum unit and insure that the override switch is in the "off" position (Figure 2 - Item 3). 

• Are all vacuum hoses out of all wall inlets? Remove.

• Disconnect the low voltage wire (Figure 2 - Item 2), if the unit still will not shut off then there is a problem with the relay control board which must be serviced. Please contact a local dealer

  If the unit does shut off once you disconnect the low voltage wire and starts immediately when you connect the low voltage, then the problem is not in your central vacuum but elsewhere in your system. Please contact a local dealer 

Symptom Unit Will Not Turn "ON"

• First press the circuit reset on your central vacuum (Figure 2 - Item 1).

• Next, turn "On" your unit using the "On/Off" override switch located (Figure 2 - Item 3) on the side of your Cana-Vac System.

• Make sure that there is power at the 110V power receptacle where the unit is plugged into. Check household breaker.

If this does not solve the problem please contact a local dealer 

 

If the above does turn your vacuum on, but you are still unable to turn your unit on remotely from the hose please check the following:

• Test the vacuum circuit relay board. Simply bend a paper clip into a shape of a "U" and insert into the low voltage (Figure 2 - Item 2). Doing this completes the circuit and should turn your unit on. If not then your control board is faulty please contact a local dealer 

• If the unit does turn on, then the problem is elsewhere in your system which could be a disconnected low voltage wire, faulty valve or possible a broken on/off switch on your vacuum hose.

• To test the hose switch, plug the hose into the valve (Figure 1) and rotate the cuff to bridge the low voltage connectors in the valve. If the unit turns on then you have a faulty hose.

Contact a local dealer