Let this be a warning to anyone thinking about "locking" an inverter.

There is a block below the lock settings "lock inverter", if you tick this block and press ok by mistake, you are in for a small challenge.

You have to contact your supplier with the serial number and proof of purchase and they will then process an unlock code.

The question is now,do I need to be on site when they generate the code, how long does it take for them to process the code, a day, 2 days maybe 3 days, lets see, is there a limited time the code is valid?