There are currently no known malfunctions.
Type of malfunction Date and time Duration malfunction Which consumers are affected? Status
Possible short-term supply interruption by connecting building City Icon to the CHP plant. 23-5 t/m 27-5


Our energy supply is more reliable than for example a central heating boiler. Nevertheless, something can happen that makes you not completely satisfied. Do you have a problem? On this page you can read how we can best answer your question.

What should you do in case of calamities, malfunctions or questions?

On the delivery set you can find infochart to fix the most common minor malfunctions as quickly as possible. Furthermore, there are several ways to reach us.

Malfunctions with urgency

Only for urgent emergencies (major malfunctions) you can call directly to

085 – 004 43 76 (choose 1)

Is your problem not urgent?

Small and other malfunctions are best reported by emailing to

Please include the following information in your message:

  • Name
  • Adress
  • Phone number
  • Type of malfunction

The details of your malfunction will be registered and our maintenance party will contact you as soon as possible.

Further questions

Please send an email to

Responsibility outside Warm Kop Grasweg

Warm Kop Grasweg supplies the heat, cold and heat tap water in your home via the delivery system. After that, a malfunction, complaint or question is often outside of our responsibility and we cannot solve or answer it for you. In this case, you should follow the instructions provided by your landlord/seller. You can also consult the manual or website provided and/or contact, for example, your own installer or your landlord's service provider/installer.

Learn more about the energy system and manuals?

go to manuals