Acer India — Laptop making loud noise since your engineer opened my laptop

I bought this laptop on 05/07/2021 and within 5 days the screen started flickering randomly, I complained to the retailer from where I bought it and it took almost 2 months by your company to resolve this issue by changing the motherboard by your engineer and since them screen flickering issue is solved but my laptop fan making loud noise when switched on. Plz solve this issue as soon as possible because it's the second time in nearly 5 month of buying your laptop and facing problem 2nd time.