06 Monaco- convection oven pops inverter circuit

[Knight pilot]

Our 06 Monaco Knight, has a magnum energy model-2012 inverter. When we use our sharp microwave convection oven it pops one of the circuit breakers on the inverter itself. This only happens on the convection setting after appx. ten minutes of run time. I've tested the dedicated (I know just enough about electricity to be freaked out by it) circuit with a voltmeter and it shows 119.5 volts. I talked to the original owner (we purchased coach used in 08) he said they had the same problem since new. They simply didn't use the convection feature. We are living full time now and need it. Wife says get it fixed! I would appreciate any input or ideas.

[Jim Stewart]

You may want to turn the power off and check the wires in the outlet that the Microwave plugs into to make sure they are tight. You may also want to do the same at the circuit breaker for that outlet.

The draw of the convection oven is quite a bit and if the wires are loose, it could be heating up the connections when on for a prolonged period of time and causing your problem.

[Alan_Hepburn]

I believe that inverter is rated for 2000W - that is equivalent to slightly over 16A at 120V. Is it possible the convection oven is simply drawing too much power? Especially if there are other loads drawing from the inverter at the same time. Since the previous owner says he had the same problem since new, I would suspect the inverter is simply not big enough for the load.

[Mandys Man]

Knight Pilot,
If this is happening while you are plugged into park pedestal, then it is probably as Jim Stewart says. First thing I would do is go to Hardware store and get a good 20Amp Receptacle and replace the garbage one that was installed. You need to get a good connection there first. Pull the small panel on the side of the inverter off and make sure the wire connections there are tight also.
If you are trying to run it off batteries, then it is simply too large a draw as Alan_Hepburn states. You might also want to check and make sure that all connections are tight in the main panel in the closet. Make sure you shut off all power if you do this.

[Knight pilot]

Thanks Everyone for input so far! This is a frustrating situation. I suppose Monaco could have installed more oven than this inverter can handle. I'm very happy with Our Knight so far. and will start with checking the simple stuff first.

[hillbilly3]

It does sound like an overload, given the period of time it takes to trip the breaker. A clamp on ammeter would confirm this. Also check if it only does it disconnected from shore power, you may have weak batteries or corroded battery connections causing too much voltage drop from the batteries.