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Hilti VC 20­U - User Manual

Hilti VC 20­U
20 pages
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VC 20-U
VC 20-UL
VC 20-UM
VC 20-UME
VC 40-U
VC 40-UL
VC 40-UM
VC 40-UME
English
Printed: 25.08.2017 | Doc-Nr: PUB / 5370890 / 000 / 00

Questions and Answers

  • K
    Kevin RobertsAug 18, 2025
    What to do if my Hilti Vacuum Cleaner has an acoustic warning signal and reduced suction power?
    • E
      Erica FisherAug 18, 2025
      If your Hilti Vacuum Cleaner is emitting an acoustic warning signal and has reduced suction power, it could be due to several reasons. First, check if the dust bag is full and replace it if necessary. Another potential cause is a filter element clogged with dirt or dust; if your vacuum has an automatic filter cleaning system deactivated, activate it and let the cleaner run for about 30 seconds. Also, inspect the suction hose or dust hood on the electric tool for blockages and clean them. Lastly, verify that the hose diameter setting is correct, especially for hollow drill bit applications where a 15 mm setting is recommended.
  • B
    barbara96Aug 20, 2025
    Why is my Hilti VC 20­U making an acoustic warning signal?
    • C
      Cody SerranoAug 20, 2025
      The acoustic warning signal and reduced suction power in your Hilti Vacuum Cleaner can be due to several reasons. First, check if the dust bag is full and change it if necessary. Second, the filter element might be clogged; if your vacuum has an automatic filter cleaning system, activate it for 30 seconds. Third, the suction hose or dust hood could be blocked, so clean them. Finally, the hose diameter setting may be incorrect; adjust it, setting it to 15 mm for applications with a hollow drill bit.
  • M
    mary01Aug 23, 2025
    What to do if the motor of my Hilti VC 20­U Vacuum Cleaner doesn’t restart?
    • D
      David DorseyAug 23, 2025
      If the motor of your Hilti Vacuum Cleaner doesn't restart, there could be several causes: 1. The mains circuit breaker may have tripped. Try resetting it. If it trips again, investigate the cause of the overload current. 2. The waste material container might be full. Switch off the appliance and empty the container. 3. The motor overheating protection cut-out may have been activated. Turn off the appliance and allow it to cool down for about 5 minutes. If it still doesn’t start, return it to Hilti Service. 4. The motor might be repeatedly switched off by its thermal cut-out. Clean the air vents carefully using a dry brush.
  • J
    Joseph HicksAug 26, 2025
    Why is my Hilti VC 20­U blowing out dust?
    • L
      Lisa MartinezAug 26, 2025
      If dust is being blown out of your Hilti Vacuum Cleaner, it's likely due to one of two issues. Either the filter element is not fitted correctly, in which case you should refit it, or the filter element is damaged, requiring you to replace it with a new one.
  • J
    Joseph StephensonAug 28, 2025
    Why does my Hilti VC 20­U Vacuum Cleaner switch itself off and on, or discharge static electricity?
    • G
      Gordon WagnerAug 28, 2025
      If your Hilti Vacuum Cleaner switches itself off or on, or if you're experiencing static electricity discharges, it's likely due to electrostatic charge not being conducted away because the appliance is connected to an ungrounded power outlet. To resolve this, connect the appliance to a grounded power outlet and use an antistatic suction hose.
  • T
    Tracy EllisonAug 30, 2025
    What to do if my Hilti VC 20­U doesn’t start or switches off quickly?
    • M
      Mr. Xavier HoganAug 30, 2025
      If your Hilti Vacuum Cleaner doesn’t start or switches off shortly after starting, the water level cut-out may have been activated. Clean the sensors and the area around them with a brush.
  • B
    Brittany JordanSep 2, 2025
    Why doesn’t the motor run on “AUTO” on my Hilti Vacuum Cleaner?
    • W
      williamssamuelSep 2, 2025
      If the motor of your Hilti Vacuum Cleaner doesn’t run when set to “AUTO”, ensure that the supply cord plug is fully plugged in and check that the appliance functions correctly.
  • S
    susan32Sep 4, 2025
    How to fix the automatic filter element cleaning system on my Hilti Vacuum Cleaner?
    • C
      crystal09Sep 4, 2025
      If the automatic filter element cleaning system on your Hilti Vacuum Cleaner isn’t working, make sure that the suction hose is connected.
  • S
    Steven BrownSep 7, 2025
    Why does my Hilti VC 20­U have an acoustic warning signal and reduced suction power?
    • P
      Pamela HicksSep 7, 2025
      The acoustic warning signal and reduced suction power in your Hilti Vacuum Cleaner may be due to several reasons: the dust bag might be full (change the dust bag), the filter element could be clogged with dirt or dust (activate the automatic filter cleaning system and let the vacuum run for 30 seconds), the suction hose or dust hood on the electric tool may be blocked (clean them), or the hose diameter setting could be incorrect (set the correct hose diameter, using 15 mm for hollow drill bits).
  • C
    Christine CampbellSep 9, 2025
    What to do if my Hilti VC 20­U Vacuum Cleaner doesn’t restart?
    • T
      Taylor McphersonSep 9, 2025
      If the motor of your Hilti Vacuum Cleaner doesn’t restart, check the following: the mains circuit breaker may have tripped (reset it, and identify the reason if it trips again), the waste material container may be full (switch the appliance off and empty it), the motor overheating protection cut-out may have been activated (switch the appliance off and let it cool down for about 5 minutes; if it still doesn’t start, return it to Hilti Service), or the motor might be repeatedly switched off by its thermal cut-out (clean the air vents carefully using a dry brush).

Hilti VC 20­U Specifications

General IconGeneral
Power consumption1200 W
Weight9.3 kg
Dust classL
Dimensions (LxWxH)480 x 380 x 485 mm
Power input1200 W
Cable length7.5 m
Hose length2.5 m
Noise level72 dB (A)
Container capacity21 liters
Container volume21 liters
Tank capacity21 liters

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