Which components are responsible for the power regulation circuit?

[Lo-Dipop]

Hello!

I've got a problem with my washer dryer. Indesit WIDL 126. Sometimes, it doesn't turn as it should (it stops earlier) and then a relay clicks lots of times. This even happens durin spin cycle. On high spin you can hear that the motor suddendly doesn't get power (even the pump) and just a second later it has got the power again (it ramps up a little bit). Another problem is that the pump stops several times during draining. I think these problems occur because of one fault.

A friend told me that there might be a fault by the power regulation on the pcb but he couldn't figure out which components are responsible for that.

That's my question: Does anyone know which components are responsible for the power regulation on the pcb?
Does anyone think that there is another fault?

Thanks!

 

[bernardgreen]

Check the mounting of the heat sink ( black arrows ) and the solder joint of the regulator ( red arrow ). They may have been affected by vibration.

 

[Lo-Dipop]

Check the mounting of the heat sink ( black arrows ) and the solder joint of the regulator ( red arrow ). They may have been affected by vibration.

View attachment 114748

Thanks for answering. The heat sink feels stable and the regulator fits tightly to the heat sink... The screw isn't loose at all.

 

[Gerrydelasel]

My money is on those electrolytic capacitors. They look toasted.

 

[Lo-Dipop]

My money is on those electrolytic capacitors. They look toasted.

Okay...