Our equipment repair service

If you need to contact us regarding a faulty unit, or wish to return it for repair, you can reach us 24 hours a day by e-mail on support@thummahr.de. To help us provide you with swift assistance, and with minimum bureaucracy, please use our service application form. Gathering all the required information together, briefly and painlessly, is very much in your own interest. You can return the form to us either by mail or by Fax on
+49 - 2173 - 967 400.

 Our service department is available on the telephone, Monday to Friday from 8:30 to 12:00. You can discuss your concerns with Dirk Kästner who can be reached on
+49 - 2173 - 967 333. 

Please let us know when you contact us whether you wish to make a claim under warranty. On any occasion when you need to return equipment to us, please first obtain a RAI (Return Authorization Ident) to help us to guarantee a speedier service response.

Please make sure that you do not return any equipment to us without a RAI! We regret that we would otherwise have to invoice you for the additional administration overhead involved.