Lloyd — Air conditioner board change

I have purchased air conditioner in may 2019. Now if I switch on the AC, entire power in house goes off. After calling service center technician came & told, due to rusting short circuit is happening and only solution is to change the board which cost 6000 rupee. An AC purchased for rs. 35000 is having faulty parts within 1.5 years is not normal. After installation I had to call 3/4 times the service center and they came & checked it and never told anything. Considering the lifetime of AC, changing board in 1.5 years is unacceptable. It definitely shows the poor quality of product.