Voltas Becko Refrigerator — I changed pcb 5 times but its getting damaged again and again

Address: 72 pocket-22 sector-24 rohini delhi-110085

I have got my refrigerator pcb replaced 5 times in just 6-7 months it getting damaged again and again the technician says voltage fault but no voltage damage in other products i have also got the voltage checked by local technicians