System Fan (90B) and Laptop is not determining AC Adapter

[SwetAmit]

Hi, the moment I connect AC Adapter to my HP laptop, it shows connected and charging for 4-5 seconds and then it never charges again. Therefore, my laptop is running on battery. Here is the interesting part, I leave AC Adapter connected to my laptop when it is switched-off and then battery charges to full giving an opportunity to run my laptop on battery again. Sometimes an error message appear at the time of booting of my laptop. It says "The system has detected that a cooling fan is not operating correctly." with System Fan (90B).

I did some research over Google and able to clean fan and other possible areas but above error and charging remains intact.

Looking for help / suggestion here, please.

[KrazyToad]

@amay18

Welcome to HP Community

I have gone through your Post and would like to help

Please reinstall the Microsoft ACPI Compliant Control Method Battery and check if that helps

Step 01. Click on the Start Button
Step 02. Type "Device Manager" in the start search box & open the Device Manager
Step 03. Look for Batteries and expand it by click on the + symbol on the left
Step 04. Right Click on "Microsoft ACPI Compliant Control Method Battery" & uninstall
Note: This Battery driver will get re-installed automatically when you restart the Notebook again
Step 05. Please Shutdown the Notebook
Step 06. Remove the Battery and unplug the Power Adapter ( For Notebooks with Removable Batteries )
Step 07. Press and Hold the Power Button for full 1 Minute
Step 08. Go ahead and put back the Battery and connect the Power Adapter and restart

Next update the BIOS from this Link: https://support.hp.com/us-en/drivers

If the issue persists run a Battery Test again to confirm the Hardware Functionality

- Hold the power button for at least five seconds to turn off the computer.
- Turn on the computer and immediately press Esc repeatedly, about once every second. 
- When the menu appears, press the F2 key.
- On the main menu, click Component Tests and Power > Battery

You can also follow the instructions in this Link: https://support.hp.com/in-en/document/c03620929 for the 90B fan error

Let me know how it goes 😊

If the information I've provided was helpful, give us some reinforcement by clicking the "Solution Accepted" on this Post and it will also help other community members with similar issue.

[SwetAmit]

Hi @KrazyToad,

Thanks for providing the solution to issue I reported. However, it doesn't worked for me. Also, I have observed that there is one more issue with Laptop which is System Fan (90B) issue which says "The system has detected that a cooling fan is not operating correctly." So here is the summary of both the problems: 1) Just after clicking Power button, my laptop shows Fan error (see above). Once I hit Enter button, it takes me well to the normal PC mode where I can work without any issue. 2) However, the system runs entirely on battery without determining AC Power. When I shutdown my laptop, the battery which got consumed will charged to 100%.

I performed the fan cleaning steps and battery reset procedure but no improvement 🙁

Then, I ran the System Diagnostics and the Component Test gave a Warning message: The Smart Adapter feature failed to return valid data.

Please help me to troubleshoot both these problems or suggest a solution.

Thanks in Advanced

[Echo_Lake]

@SwetAmit

Thank you for posting back. 

I appreciate your efforts to try to resolve the issue. I would request you to reach out to our Support and our Support Engineers should be able to sort this out. HP Support can be reached by clicking on the following link: www.hp.com/contacthp/

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Please feel free to contact us here anytime you need any further assistance. Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.