There is no doubt that central vacuum systems provide a great deal of convenience when it comes to cleaning your home. 
But just like with any other machine, you may encounter service issues with central vacuums that will require troubleshooting or repairs. Good news is some of them are common problems that you can fix by yourself.

Just always remember to unplug the power unit from the electrical outlet before repairing and cleaning.

Below are some common central vacuum service issues and step-by-step instructions that will help you resolve them.

The Power Unit Won’t Start

1. Check the fuses or breakers (trip switches) in your house’s electric panels.

    

2. If your power unit has a control light, the green light indicates that the unit is working properly. This means that the low-voltage circuit is supplying power to the inlets, and the voltage is correct.

    

   But if the light is on and the motor starts only with the on /off button and not at the inlets, the problem is broken low- voltage wiring to the wall inlets. When this happens, it’s best to call your authorized dealer.

    

3. If the green light is flashing, or does not light up, and the motor does not start, excessively high or low standard operating voltage, high current draw, or a locked rotor could have caused a problem in the power unit. It could also be that the unit was powered on using a low-volt connection such as a switch on a handle or a vac pan.

    

   If this happens, you should:

   a. Make sure that all handles and vac pans are switched OFF.

   b. Unplug the power unit from the wall outlet and reconnect it.

   c. On the power unit, press the on/off button.
   
   

The Power Unit Won’t Shut Down

Check the low-voltage circuit as follows :
Disconnect one of the two wires on the unit’s low-voltage circuit.

If the unit shuts down, It’s possible that two low-voltage cables are rubbing against each other or that the wall inlet is damaged.

If the unit doesn’t shut down, then the printed circuit is damaged. Unplug the power cord.

Partial Suction Loss

1. Clean or replace the collection container and inspect and clean the filter.
   
   

2. Turn on the power unit with its on /off button and check the suction at each inlet. The line is partially clogged if it is not the same at each one. Start with the inlet nearest to the power unit and check the suction to find the clogged location in the system. Continue to check each inlet until you find the inlet where a loss in suction is occurring. The clog will be between that inlet and the last one you checked. To clear the blockage, carefully place an electrician’s fish tape in the inlet and push it through. You can also use another vacuum to clear the blockage by reversing the suction in the system. 
   
   

3. Check the gasket under the motor with your authorized dealer.
   
   

Total Suction Loss

1. Look for any blockages in the hose.
   
   

2. Turn on the power unit with the on /off button and follow the same procedure as above. If there is a total loss of suction at all inlets and the problem is a clog in the system, the blockage would be located between the power unit and the first inlet.

We hope that this guide serves as the answer to your central vacuum woes. If none of the steps above resolves your central vacuum’s issues, then it’s time to contact your authorized dealer and have a certified technician repair your central vacuum system.