From the Acer website:
Power Issues or Will not
If the notebook does not
Make sure the ac
adapter is correctly plugged into the notebook and into the power
If everything is
plugged in correctly and it still will not power on, follow these steps to
complete a ‘power reset' of the notebook.
Unplug the ac
adapter. Keep ac adapter unplugged.
battery and keep the battery unplugged.
Hold the power
button down for 15-20 seconds. (Nothing will appear on the display and none of
the lights will light up.)
power button and plug in the ac adapter ONLY. (Please note that a power
indicator light should be lit on the ac adapter when it is plugged
on the notebook.
If the unit
does not power on, remove the ac adapter and insert the battery into the
Plug the ac
adapter back into the system, the battery charging indicator light will light
If the battery charging indicator light does not light up, the ac adapter
may not be providing proper power to the unit, and may need to be
Also, depending on whether your power went down "clean" (quick and stayed off), or went down and quickly came back on and off many times. Or when it came back on "clean" (came back on quick and stayed on), or it came on then off many times, your power supply may have been damaged from the power surges Are you having any problems with any other appliances?