Lloyd — not proper functioning of air conditioner

Sir i purchase split 1 ton 3 star inv - ls12138f1 (G) in april 2019 of llyod make due to reputed company. But still installation i faced problem of breakdown so many time in a very short period span as you can see from my request submitted time to time. But every time they change pcb. I requested to service engrr. For replacement with new product. Every time assured that nothing to be worried as we replacing the faulty components with new one.
Sir it is the not proper solution as and when summer starts we have to left for benefit of ac in peak summer for which i have invested amount recently on 11.06.2020 again ac become faulty. So to avoid any mental harashment in the peak summer i want to surrender the product or required refund of the amount invested for making such purchase