LG fridge works for a while + then trips. Checked, its not the power supply/plug. Electrician replaced 20A circuit breaker with 25A. Worked for 3 days then tripped again. Works when I use normal 2-core cable to plug in fridge i.e. unearthed. Don’t have LG agency or fridge experts in our small town. Can unearthed connection cause harm? What is the prob? THANKS
GET A NEW ELECTRICIAN! Not only is putting a 25a breaker in a code violation at least in the NEC it is probably a real issue. Things like defrost coils go bad think of your heating element on an electric stove this is similar to what may have failed . Increasing the breaker has increased the fire risk! I say this as a licensed Electrician that also has HVAC licenses. Track the cycle of tripping and contact an appliance repair person, some HVAC shops also do repair refrigerators but at a 3 day cycle this is most likely the problem and it will burn open in some cases then your fridge will start icing up or not cooling correctly. Don’t risk a fire get it fixed and get the 20 amp breaker back in place if it is the right size for the wire or possibly 15 amp.