Salam Junaid,
First of all, I don't consider myself the best person in this regard. Secondly, congrats on your first ride and wish you all the best for a fantastic experience a head.
I can recommend you to Abu Bakar AC Electrician (in G-8 Islamabad) and I hope you'll be satisfied by his work. You can get his contact details here: https://www.pakwheels.com/forums/t/chevrolet-mechanics-parts-rwp-isb/237082
But I don't know anyone in Wah, may be you can just visit any good AC electrician in your area. I'm sure he will be able to fix it or suggest you the solution. You can use pakwheels to search some good AC electrician in Wah. Though it would be great if you can visit AbuBakar in G8 Islamabad. make sure to call him before visiting