Do you have an E1 error on your display? 

With an E1 error it often happens that the values required for a test or a program do not come through or do not come through properly. Run the test again or consult the manual.

Do you have an E2, E3 or E7 error on your display? 

With this error there is a connection problem between the resistance motor and the display. We recommend that you carefully check the cables you have connected and that they are properly connected. Make sure that the iron pins in the cables are not bent. If the cables are properly connected and not bent, please contact us for a service appointment.

Do you have another error on your display? 

For all other errors, we recommend that you contact our customer service.