Service procedure

Contacting us

  • You might need some advice about our product portfolio, or perhaps wish to raise a complaint?
  • Our Service team is there for you on:
    • Service Hotline : +49 7371 9508-22
    • e-mail:
    • WhatsApp: +49 7371 9508-22 (pictures, videos, video chat on request)
  • You can contact us at these times:
    • Monday – Thursday: 8 a.m. to 5 p.m.
    • Friday: 8 a.m. to 2 p.m.
  • Outside these contact hours, a member of our Service team can be contacted on our Emergency Hotline:
    +49 7371 9508-22.
    Lock may levy a discretionary fixed-rate charge for use of our Emergency Hotline


Registration of your EWA

Why register it?

  • 10-year Lock quality guarantee. *
  • Faster response and prompt help for Service-related cases.
  • Shorter processing times for Service-related cases.
  • Your equipment is covered by Lock’s preventive quality assurance scheme.
  • Upgrades to the control unit are quick, easy and inexpensive to perform.

* see warranty terms & conditions

How do you register?

Using the postal system:

  • Complete the registration form provided on the assembly instructions.
  • Apply the attached registration card on the registration form
  • Put the registration form in the envelop and put it in the post-box.
  • Several power drives in a system can be registered on the same form.

Or by phone:

  • Ring this number: +49 7371 9508-512

Or by WhatsApp:

  • Save the Lock Servicehotline-number as a contact
  • Photograph the completed registration form
  • Send the photo + your location by WhatsApp to +49 7371 9508-22

Or by email:

Or over the Internet:

Or by QR code:

  • Scan the QR code to get to the online form.

Or directly when you place an order:

  • When you place an order, provide us with your project address.