My treadmill screen stays blanc and motor don't start?

hi, I am very sad my treadmill stop working from day to day, the last we use program7 and Finnish with no problem , but instead in 45mins in 30mins and that's it.Today I wanna run but the main switch down under switch on and is on light but the main screen is blanc and what ever I press treadmill don't start and nothing apeares? What can I do ? I don't have quarancy any more! Please let me know if you know more then me, thanks Lella