Fan is constantly running and is loud.

My laptop's fan has been constantly making this loud noise and is always running a speed of 6000+rpm. I also tried doing the SMC but no progress. When i start my laptop, the fan starts constantly running at a high speed. I also opened the laptop to clean the fan with a dust blower and yet nothings changed. I then resulted into the Apple Hardware Test, and they detected a error, "4MOT/4/40000002: Exhaust - 7022". If anybody knows what the error is, can you please let me know how i can fix it also?

Thank you so much, truly appreciate it :)

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