Leaderboard

if a hard resset doesn't work it's most likely pooched

It's a start, but measuring actually means nothing. It could be perfectly 5V without a load and as soon as a load/box is connected, it may drop down quite a bit. And even if the Voltage is good, it may not be able to provide enough current. 5V power supplies are typically common (and most with Center positive), so if you have another 5V power supply (rated at least 2A), you can try to swap it (assuming barrel fits).

Not a buzz issue

good suggestion, I will measure the output with my volt meter to see if it is outputting the correct amount of hydro.

very possible maybe just the power supply is pooched

Yes nibs i am doing just that

You are holding button down then powering up unit?