Polar 78 fail sk95

Good morning, I introduce myself from Spain, specifically from the Canary Islands, and I discuss my problem, looking for a solution since we are at a point of blockage.

The machine, a polar 78, gives a defective v25 blocking valve failure error, everything is checked and it is seen that the sk95 board has burned chips, a new sk95 board is ordered from the factory and after a month of use the board burns again With the same chips, this time the board is repaired, the chips are changed and a few days later it burns them again.

Anyone in a similar situation who can shed some light for me?

 

Can you send some photos from damaged components?

 

Hola, ok.

 

Hello, this was also replaced due to failure.

 

One thing I noticed is that sometimes when I press the off switch to unplug the machine it beeps, sometimes it beeps and sometimes it doesn't, I don't know if this can help or is this normal.

 

Which canary island are you on. I am a guillotine engineer with 35 years experience.i am in tenerife from 28th September. Send me a photograph of printed circuit board showing which chips burn. I will try to come up with a reason, it must be something external that these chips are driving. Send photo to andrewmartin58@hotmail.com