Mist-air pressure washer

[johndeere6920]

And does it matter if the test button flashes when its pressed?

 

[Marvo]

The test button simulates a fault. I guess you might see a certain amount of sparking when it trips if it's under load. Not sure what you mean by 'flashes' though.

 

[johndeere6920]

a blue flash is seen around the test button when it's pressed but it doesnt spark