Loooks like you owe one to Siemens for making a faulty Over-Voltage-Relay.
Behind the battery, aluminum relay. Part 000 540 52 45.
Change it to 000 540 67 45 .
...about $60 , can get it right here.
And, of course, if that fixes it...go give her some more $$$$...
I often wonder how many get traded/sold BC of a bad OVP?????