Laptop Adaptor is Noisy and not Charging

Dear experts,

Suddenly my laptop adaptor started to be noisy whenever it's connected to the power and not charging any more. The sound is repetitive every half a second and doesn't stop.

What should i do?

Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

dbruntonQuid, Me Anxius Sum?  Illegitimi non carborundum.Commented:
Replace the adaptor.  Seems like it is failing or failed.  By adaptor I presume you mean the power cable and power converter that is part of the cable.
Replace it or ask fro waarranty if it has
Stop using the adapter immediately.  A failing/faulty power adapter can destroy your laptop.
IT Pros Agree: AI and Machine Learning Key

We’d all like to think our company’s data is well protected, but when you ask IT professionals they admit the data probably is not as safe as it could be.

If you have a similar models adapter you could plug it in your PC and test.

The wire going to the connector can get twisted and the insulation could break over time
causing an arc and shorting. That could give rise to the crackling sound.
Inspect the output wire to see if there is any bulge/damage. It could be repaired but one
need to have some knowledge/experience in wiring and soldering.

The components in the adapter could also fail in which case repair would
not be worth the time and money spent.

You would certainly require another adapter to test your machine.

kanaryAuthor Commented:
Nothing is twisted I've rechecked.

The cracking sound appeared before for one day then it was gone. After that it was charging normally. but today it started this cracking sound again without charging :(
dbruntonQuid, Me Anxius Sum?  Illegitimi non carborundum.Commented:
Again, it's faulty.  Replace it.  

Doesn't have to be insulation or bad connection.  Could be failing capacitor, resisitor, choke, diode, transformer or some other component within the unit.  Works one day.  Fails the next.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
check with another adapter (borrow one from a friend) to test
check also the sound does come from the adapter, and not from the laptop , or input jack
It seems the transformer in your laptop is now having low insulation resistance and may burn. So don't use that adaptor as it may harm your laptop. Either get it rectified or use a new branded adaptor.
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.