Power light flashing erratically and battery charge light blinking on and off
Problem description:
The laptop power light flashing erratically and the battery charge light blinking on and off when AC adapter is plugged into the laptop.
Possible cause:
1. Power jack failure.
2. AC adapter failure.
Laptop shuts off when AC adapter plugged in
Problem description:
The laptop shuts off when AC power adapter is plugged in. The laptop works fine on battery power but as soon as you connect it to AC adapter, the laptop turns off.
Possible cause:
1. Power adapter failure.
2. Motherboard failure.
Battery charges only when laptop turned off
Problem description:
The battery charges only when the laptop turned off. The battery charge LED lights up as normal and the battery gets charged to 100% while the laptop is off.
When the laptop is turned on, the battery charge LED goes off even if the adapter is still plugged in.
Possible cause:
1. AC power adapter failure.
2. Battery failure.
3. Broken/loose power jack.
4. Motherboard failure.
Tags: AC adapter failure, Power jack failure, Problems with main battery
Laptop power light doesn’t come on when AC adapter plugged
Problem description:
The laptop power light doesn’t come on when AC adapter plugged into the laptop. The power light used to light up as soon as you plug the power adapter but no there is no light.
Possible cause:
1. AC adapter failure.
2. Power socket failure.
3. Motherboard failure.
Laptop adapter makes buzzing noise
Problem description:
The laptop AC adapter makes buzzing noise and gets very hot.
Possible cause:
AC adapter is failing.
Tags: AC adapter failure
Laptop switches from AC power to battery power when adapter still plugged
Problem description:
The laptop switches from AC power to battery power even when the AC adapter is still plugged into the laptop. The AC power light goes off but the laptop keeps running from the battery. If you adjust the position of the power plug inside the socket, the power switches back to AC. The problem is intermittent. Intervals between the power failure may vary.
Possible cause:
1. AC power adapter failure.
2. DC power jack failure.
Laptop turns on for a moment and shuts down right away
Problem description:
The laptop turns on when you press on the power button but shuts down right away. There is no image on the screen. You tried using the laptop just from AC power with the battery removed, but it doesn’t help.
Possible cause:
1. AC adapter is dead.
2. Motherboard failure.
Tags: AC adapter failure, Laptop doesn't start, Laptop shuts down
