One would go "boom" when it fails and the Plus unit would make sizzling sounds afterwards?
I would say since you're far out of warranty, print the schematic and then look at the logic board. You should also have clarified it was the v3000Plus.
Not to digress, but this lady booked time with me, flaked, rebooked for later in the day, flaked again. Booked for next day, flaked and no call for 6 weeks. Her flaking out costs me some potential consulting dollars, but no, I held that time she booked. I'm debating on telling her to "just pick your crap up and get it the hell out of my house" right now or finish her job(she wants to preview some elements for picking and choosing).
I'm not a person who likes having my time wasted. Accuracy is important in our industry. Please always be clear and exact the first time. Model numbers are easy to get exact, it's printed right on the unit 99% of the time.