What GFCI outlets are compatible with the Freedom 30, all my GFCI outlets emit a low buzzing noise when on invertor power

First, the GFI runs on house current aka shore power. Make sure you are plugged in! Most GFIs have a light showing power on.

Check your breaker - not a car type fuse - in the fuse panel. GFIs are nothing but a quick-disconnect in case of a short. (Quick description)

You really need a wiring diagram for this. Try and get one online or from the mfg.

Start by tracing back towards power source from GFI. Remove GFI and check for power on the wires. Be careful, it's 120vac house current. If you have power, replace the GFI. If no power, look at the diagram and proceed to the next outlet/GFI on the same circuit. You might have to go all the way to the power distribution panel. Sooner or later you will find the open wire. Might be nothing more than a screw vibrated loose disconnecting the power feed.

You need to determine if it is experiencing a ground failure or a short. You can purchase an outlet tester at Lowes for a low price that will indicate if you have an open ground, a short etc. If the GFCI outlet is bad then replace it.

Do you have any other nearby devices that emit radio frequencies like a wireless router or a cell phone? I have had issues with buzzing on some of my speakers when my cellphone was nearby.

if your room is powered by one breaker you need only one gfci and it has to be hooked up correctly to protect the other outlets a new gfci will have a tape tag over the out side usually the top set of nuts the water in the panel is a major fire hazard i would fix this problem first your feed to the gfci may have shorted out in the wall between the breaker and the gfci if it is wired separate from the other gfci in that room one thing you can do to save calling an electrician is go to lows home depot or any electrical store and purchase a plug in tester they are inexpensive and easy to use it will tell you if wires are hooked up correctly backwards or if you have a short somewhere in the line this is the same little gadget that an electrical inspector uses to make sure new homes are wired correctly an outlet will still work even if some wires are incorrect in the circuit the outlet tester confirms all is good and safe

The following site gives you an idea. Please download the manual from there in pdf format.
http://www.xantrex.com/documents/Discontinued-Products/Freedom%20Jazz%201000%20-%201500%20-%202500.pdf

Yes ,, if the fridge outlet is behind the fridge and therefore not accessible for use by counter top appliances .. then yes change it to a regular outlet.
The cause is probably the compressor, getting a bit noisy..electrical noise I mean.

Disconnected the GFCI outlets, and everything works just fine. Ridiculous that Bosch manufactures GFCI outlets that does not last for 2 years. The cheepest American made GFCI outlets last practically for ever. Beeing "Bosch", the replacement outlets cost $38 plus shipping.
It is ridiculous.

sounds like either way your power board is bad- do you intend on replacing a component? I would look for Puffy caps- you know- leaking from the top-

Batteries could be too low, or unit could think batteries are too low because it is not set up for your battery configuration. (voltage, amperage, deep cycle, wet, gel, agm etc.)

I am not sure how you set up that model but the manual should explain it. If you don't have one you can get it online from xantrex.

You have a cracked Plasma panel. If u remove the back cover of TV and look in the top left of the plasma panel u will see a small round cylinder tube with glass tip inside. Look with a flashlight and u might see the crack. OH the buzzing noise is from the current going through the panel just not ignition the gases inside the panel to light the phospher cells. Hope this helps.