Welcome to the Cana-Vac central vacuum troubleshooting guide.

Note that you can also find this information
in the owner’s manual:

ProblemPossible causeCorrective action
Decrease in suction strength Dirt recipient / Bag is fullEmpty dirt recipient / change bag (see page 21 to 25 in the owner’s manual).
Dirt recipient is not properly attachedCheck clamps holding dirt recipient, to make sure they are tight, and dirt recipient is aligned.
Open vacuum inletClose all vacuum inlets not in use.
Exhaust line is cloggedVerify that no object is blocking the exhaust.
Decrease in suction strength
Obstruction in the piping systemRemove the clamp collars from the air intake, to free the central vacuum unit from the piping system (see figure 3 on page 8 in the owner’s manual). Start the unit by plugging the hose into a vacuum inlet. By placing your extended hand over the air intake opening on the unit, check the suction strength on the unit itself. If suction strength is normal, the obstruction is in the piping system. If suction strength is diminished or completely absent, have the unit checked by an authorized service center.

If none of these suggestions restore suction strength, contact your authorized service center.

ProblemPossible causeCorrective action
Vacuum will not start The electrical power is not connected properlyEnsure that the power cord is plugged into a dedicated grounded electrical outlet, according to specifications on pages 14 – 18 in the owner’s manual.
Low voltage wire not connected properlyVerify the low voltage wires, make sure they are properly inserted into the low voltage inlet, as per instructions on page 17 in the owner’s manual.
Faulty vacuum inletStart the vacuum unit from other inlets in your home, to identify the defective inlet.
Vacuum will not start (cont.) Unit circuit breaker is offPress the reset button to reset the unit circuit breaker. If unit restarts and automatically shuts off shortly after, contact an authorized service center.
In-house circuit breaker is offReset the circuit breaker in your electrical panel. Verify that your central vacuum unit is connected on a dedicated grounded circuit (see pages 12 – 14 in the owner’s manual).
Defective on/off hoseTurn the hose 1/4 turn in the vacuum inlet. If unit starts, have the vacuum hose checked by a certified service center.
Vacuum will not stop Hose improperly inserted into vacuum inletEnsure that the hose end is properly placed in the vacuum inlet: the tab on the hose should fit into the slots on the inlet, to ensure adequate contacts for the hose switch to function (see page 18 in the owner’s manual).
Defective on/off hoseIf the hose is properly placed in the vacuum inlet, and the unit continues running despite the fact that the hose switch is in the “off” position, have the hose checked by a service center.
Vacuum will not stop Low voltage wire not connected properlyWhile vacuum is on, unplug low voltage wires from unit. If vacuum stops, there’s a faulty low voltage wire. Contact your installer or authorized service center.