A
AntiguaCasa
Hi, I recently purchased an espresso machine that the previous owner said he couldnt remember how to wire after taking it apart for cleaning. So after a few days of not finding much relevant information on the machine or the control board, I spent the next few looking at datasheets and visual and electrical inspection of the copper paths on the PCBs half dozen times to make my own diagram of circuit board and espresso machine.
So my confusion is that it looks like the only way to wire the machine is so that the control board is switching neutral.
And I'm just not used to seeing this. I did read on a few other posts that some French and Italian manufacturers do wire appliances this way. So maybe this is how its supposed to be?
I thought about just swapping the hot and neutral wires around but the wiring to the components is asymmetrical and so it doesn't appear to work this way.
To get hot switching at the circuit I can swap the outbound wires at the DPST power switch, where i have the hot black going in and then powering the previous neutral network of white wires and vice versa. But the obvious way the colored wires go together says this really isn't the manufacturers intent.
Im hoping someone can take a look at the diagram I've made and explain why it would or should be neutral switching machine.
I'm guessing that it has something to do with an espresso machine being left on for a few hours and if it was hot switching this would mean that there is live voltage at the circuit and would mean that components might stay energized even when there is no power draw. Would this be bad for the circuit board?
Thanks.
View attachment 36029
So my confusion is that it looks like the only way to wire the machine is so that the control board is switching neutral.
And I'm just not used to seeing this. I did read on a few other posts that some French and Italian manufacturers do wire appliances this way. So maybe this is how its supposed to be?
I thought about just swapping the hot and neutral wires around but the wiring to the components is asymmetrical and so it doesn't appear to work this way.
To get hot switching at the circuit I can swap the outbound wires at the DPST power switch, where i have the hot black going in and then powering the previous neutral network of white wires and vice versa. But the obvious way the colored wires go together says this really isn't the manufacturers intent.
Im hoping someone can take a look at the diagram I've made and explain why it would or should be neutral switching machine.
I'm guessing that it has something to do with an espresso machine being left on for a few hours and if it was hot switching this would mean that there is live voltage at the circuit and would mean that components might stay energized even when there is no power draw. Would this be bad for the circuit board?
Thanks.
View attachment 36029