laptop dims and brightens

twright4

When plugged into power source, laptop chirps then dims and brightens. Pattern is 5-10 seconds.

GuruAid-CS

There can be several reasons why you are facing this issue. You can follow the guidelines mentioned below and check if that work.

 

Consider using a different power point and see if that works. If the issue is resolved, then there may be some issue with your previous power point.

 

If that doesn't work, remove the battery from the laptop (if feasible) and connect the laptop directly to the power adapter. If the issue resolves now, then there may be some issue with your battery.

 

If the issue still persists, check if using another power adapter (if feasible) helps. If that helps, then there may be some issue with your current power adapter.

 

If the issue is still not resolved, you are advised to visit nearest Acer service center for further assistance. To do this, the following link can be helpful:
http://us.acer.com/ac/en/US/content/service-contact

 

Hope this will help you.