samsung blows main breaker

[cross]

i have a samsung side by side worked fine up until last week when it started to blow the main breaker it trips as soon as it is switch on my 3yr warranty ended last month is there anything electrically i can check

[The Viking]

As you listed your occupation as "electrician", just treat is as any installation blowing the MCB (but disconnect all electronics before you get the megger on it, the fault won't be in the PCBs but a megger will blow them).

Something inside is obviously shorted out, treat it like a cable that's shorted. Split it in to sections until you find which section is affected.