How to unclog a central vacuum system?


    1. Identify the Clog: Determine which part of the central vacuum system is affected. If it’s a specific inlet valve or a particular section of piping, it will help you narrow down the location of the blockage.

    2. Turn off the system: Before attempting any troubleshooting, make sure to turn off the central vacuum system to prevent any accidents or injuries.

    3. Check the inlet valve: Inspect the inlet valve first. Sometimes, debris or objects can get stuck at the entrance, preventing proper suction. Use a flashlight to look inside and remove any visible obstructions using your fingers or a pair of long, narrow pliers.

    4. Clear the piping: If the blockage is not at the inlet valve, it might be further down the piping system. One common method to clear the pipes is by using a plumber’s snake or a flexible rod with a brush attachment. Insert the snake or rod into the piping and push it forward while rotating it to dislodge the obstruction. You may need to repeat this process a few times to completely clear the blockage.

    5. Vacuum from the other end: If you have access to the opposite end of the pipe where the blockage is located, try connecting a vacuum cleaner to that end. It can create reverse suction and help dislodge the clog. Make sure to create a tight seal between the vacuum cleaner and the pipe to maximize the suction.

    6. Use compressed air: Another option is to use compressed air to blow out the blockage. Attach an air compressor or a can of compressed air to the pipe and blow air through it. Start with low pressure and gradually increase if necessary. Be cautious not to exceed the recommended pressure for your central vacuum system.

    7. Call a professional: If you’ve tried the above methods and are still unable to unblock the central vacuum pipes, it’s advisable to contact a professional technician who specializes in central vacuum systems. They have the expertise and tools to identify and resolve complex blockages.

    Remember, always prioritize your safety while working with any vacuum system. If you are unsure or uncomfortable with performing these steps yourself, it’s best to seek professional assistance to avoid potential damage to the system. 



Your central vacuum is one of the most valuable cleaning tools in your home. Time and regular use can hamper a central vacuum’s efficiency, but the occasional 20-point comprehensive tune-up keeps your central vacuum running at optimal performance.                                                 

20-Point Tune-Up Details:

Power Unit

  • Tighten intake, exhaust and line clamps
  • Inspect internal motor plate gasket for proper sealing
  • Inspect motor, transformer & replay for proper function
  • Tighten dirt canister clamps, if needed
  • Inspect dirt canister seal
  • Empty and clean dirt canister
  • Clean power unit exterior
  • Check utility or canister valve operation
  • Clean motor screen or replace filter/bag, if included
  • Confirm warranty registration information 

Tubing System

  • Check inlet vavle switches for proper function
  • Check inlet valves for proper sealing
  • Tighten all inlet valve screws and level
  • Run a pressure check on entire system
  • Troubleshoot any leakage found 


  • Clean and inspect all standard tools
  • Clean power brush (limit 1)
  • Check hoses for air leaks and obstructions
  • Ensure hose rack is installed and secure
  • Ensure hose sock is tied and securely in place, if applicable