Monster Power Center question

I just got the Monster Power Center HTS 3600. It has two LEDS, 'wiring OK' and 'ground OK' that do not come on. The manual says to unplug and call electrition. I tested the unit on every grounded outlet in my house. Samething. I have been using it, seems just fine. I just wonder what was going on here. Anyone know electricity?
It is probably defective. The LEDs are probably unplugged inside the unit.
Go to a friends house and plug it in before you send it out for service
Good idea, Chadnliz
I had a 2600 and the blue LED burned out. They replaced the unit with no problem.
Thanks guys, I just wanted to make sure it is safe and it seems to be.