Henry Hoover Hi/Low Switch If your Henry won’t enter “Boost” mode properly—try this compatible Hi/Low illuminated automatic switch first. It's the recommended first fix, though the PCB may also need checking. Why shop with us? Free UK postage on every order In stock & dispatched within 1 working day Family-run business helping you fix, not replace, your vacuum Trusted by Henry owners for years Key benefits Restores "Boost" mode quickly and affordably Includes built-in illumination for easy visibility Simple swap to troubleshoot suction issues Fitment Compatible with any Numatic, Henry, or Hetty vacuum made after 2009 Please compare with the photo to ensure the correct version Please note this part is a compatible spare part and the manufacturer’s names and part numbers have been used for reference purposes only.the Mix & Match Discount Mix and match any Henry parts to receive these discounts. We pass our postage savings directly to you the more you buy—thank you for supporting our family business! Extra tip After replacement, if “Boost” still won’t kick in, check the PCB/controller next—sometimes it’s the chip, not the switch.