Dear Edurau ... I have a problem similar to that that accounts ... I have connected to all the artefactoc electricos
of my house, protectors of digital tension ... where the electricity comes and it is programmed that if it goes down to 185 it will cut so it does not affect TV, PC etc. And the washing machine does not have a tensiometer but when there is low voltage (185V) it goes off.
then you suggest me, that for 30 days with a tester from the board measure the voltage and take a record to claim? .... the test of tension, from the board you will follow me to do with the devices plugged or unplugged?