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.
Possible troubleshooting steps and repair solution:
First of all, test the power adpater. Make sure the apdapter outputs correct voltage. It’s possible that the outup voltage is not correct and the laptop shuts down to prevent the damge. Test your laptop with anohter known good power adapter.
If the problem still exists, even after replacing the adapter, most likley it’s the motherboard failure. Replace the motherboard.
Reader's Comments
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my lap top(l305) restart when i connect to power and it works in safe mode even it is connected to power but it works in battery ….i changed os two times ,checked with other battery and power adapter stil am having same probelm ..can any one adivse me a solution?
hi,
this is the same issue im having with my acer laptop. cleaned the fans, changed the power strip and nothing…can someone pls asssit
guys i had the same problem. i thought it was some processor complaint(overheating)..i cleaned the fan n even changed the thermal glue for the proccessor. but it was the power adapter problem..i can use my lap safely in safe mode with adapter connected. but when i use in normal mode the display goes blank.(but it works perfectly when on battery). i think better change your adapter.(i could charge my battery with computer off.)
my Toshiba satellite pro laptop goes off or bad graphical image when ac power adapter is plugged in.please help me
Thx guyz count me in..T43 2668 with WIN7 experience the SAME issue as @shijin – the TP will work fine with or without AC plugged in BUT ONLY in SAFE MODE..?
TP will run fine on NORMAL MODE with BATTERY untill run down ( ihave an additional Battery-to plug in in DVD drive)the battery will also charge normal with same AC PLIGGED in ONLY in SAFE MODE as soon as you switch to AC plugged in the TP shuts down almost with in minute or so….then go back to SAFE MODE and charge back and run normal without AC plugged in?
It started after FAN ERROR due to pverheat was resolved after cleaning up the HeatSink and FAN area(Fan Error persisted for some time and was able to boot around that with bypass BIOS via esc/F1 fooling BIOS abt the status of fan and then used DUSTER compressed air to blow fan..worked and now NO FAN ERROR but THIS safe modeONLY with AC and shut down while plugged in with AC in Normal Mode..sorry if repeated the issue BUT looking for answers…thx ahead and yes will try alternate power pack(adopter) to check it out..looking fwd 2UR input asap…regards..vijay M..aug 19 2011
OK ppl again…reading n additional tresearch indicates that:::
It likely is an issue with DUAL CORE PROCESSORS and one needs to change..issue resolved – earlier posy July 5th
Issue addressed with CAPACITOR replacement (V core Block..appears to work
Issue restricted and addressed to narrow down with OS like works ONLY with EX SP1 and none else anything with VISTS or Win7..no go..?
Wonder what I do?
running WIN7 (renstalled clean after EX (orignal) then reistalled VISTS Pro and NOW win7 installed abt 7-8 months ago…it worked all fine untill THIS week..?? after clean up and resolution to BOOT UP with black screen and FAN ERROR prompt..?
still looking for resolution …thyx ahead…much appreciated..vijay M
My laptop Acer 8920 with Vista Ultimate 32 restarts when AC Adaptor is plugged in. The restarts are continuosly in between different time. When is used with the battery, works perfectly. What can be reason? Plese, if any one have solved this problem, to write me a message.
@ Vaselin,
Have you tried another AC adapter? Could be just bad adapter.
With other AC adaptor is the same situation-restarting when is plugged in and then continuolly restarting again.
I have the same problem since last month, anyone could solved, please.
Thanks a lot !
I send to Acer factory my laptop and they said that the motherboard is defected and replacement is required, which costs 261 EU.