We turned on our generator while our inverter was still plugged in. Can we fix it?

The DC output for battery charging is from the engine alternator and is completely independent from the generator inverter.

As this is an inverter unit the typical polarization techniques for standard generators will not apply.

The ouput indicator being lit means the inverter input output should be good. This further implies a circuit disconnect state at the outlets. Try pressing the overload reset switch to make sure it is not in an odd state.

I would suspect that the inverter is fine and would look towards carburetion. The inverter, in addition to supplying the correct voltage and current, monitors the current being drawn by your connected load. It controls that stepper motor on the top of the carburetor and increases the throttle to increase the engine power to support the load. (Mechanical power in = electrical power out.)
Start the generator and then add a small load to the outlet, 100 watt light bulb or something. I use a space heater that I can turn on just the fan. See if it still stays running. Then increase the load (with my heater I go from fan only to the first level heat 1000w) and watch the top of the carburetor to see if the inverter increases the throttle to compensate for the increased load. By the sounds of what you are describing, it will go to full throttle and the engine will die because of a restriction on the available fuel. If that is the case, take the carb off and clean it. Or if you are not the carburetor rebuilding type, buy a new one.. they are only about $80. Not a bad fix for a $2000 generator :)

Try taking out your spark plug and see if it needs cleaned or replaced

It can't be done. The generator portion only generates enough voltage to operate the inverter.

dear see that :
1- the range of voltage which inverter work between it for example 180-260 v
2- most small generator voltage reach more than 260V so the inveter not work
3-check the frequency of genaratoer if it not fix the inverter will mot work

If the motorhome is happy with a normal mains hookup it should be equally happy being supplied by either a generator or an inverter, as long as they are correctly wired and producing the correct voltage.
The only precaution to take would be to ensure no more appliances draw current than the inverter or generator can comfortably supply.

If the inverter is correctly wired and connected and the load is within limits and nothing is happening, the obvious conclusion is the inverter is not producing current.

I suggest you check the inverter is actually working and producing current and if all is good reexamine how it is connected...

Frequency is a function of generator RPM. Slower the engine, lower the frequency. Faster the engine, higher then frequency.

Look at your generator first, it should be able to maintain this load without problems - check your governor.

You can try plugging in a lamp directly into the generator so that it won't see a pure inductive (input to inverter) load, but will also see the resistive load from the lamp.

Power Draw of 10Amps is going to be what it is, unless you change the AMP Hour capacity of your battery bank that is connected. Be careful though, as this will not only reduce the charging current (and amount of load present on the generator), but it may also affect how the inverter operates with heavy loads, and may cause the charging profile to go into bulk and float modes prematurely.

Are you feeding your generator into the inverter via the transfer switch, or are you plugging the coach power cord into the generator? The former would force all the AC loads to be switched by the inverter, the latter allows all ac loads to be powered, even those that you may not know about / realize (water heater loads are a big one) and eat up generator capacity.

DO NOT DO THIS! If I understand you correctly you want to have three ways to have 110 power in your motor home--- (1)Vehicle 12V to inverter to main panel. (2)Generator to main panel. (3)plug the main panel into 110V. If any two of these are connected at the same time and they are both live, somethings going to blow. That's because with AC, the two sources must be synchronized in their cycles very precisely. The utility company connects their power plants together on the grid only with the aid of precise controls. But the really serious problem is the same reason they invented transfers switches for home generators -- if you were connected to (3) and the power went out, and you connected (1) or (2) without disconnecting the dead (3), you will backfeed power to the line outside and you just might kill the lineman who is trying to fix the power outage.

First problem is caused by the new generator producing too high a frequency... 65 Hertz is above the inverter limit. Adjust the governor down to 60 or 61 Hertz.
Breaker tripping may be due to excessive current draw from the Honda. Check the max AC input menu on the inverter. It might have been set lower to avoid overloading the original generator but if DC power was turned off at any time while you were changing generators, the inverter would have returned to it's default settings which may exceed the Honda's capacity.

Are you still under warranty with your RV? If so, take your RV back to them and try to get this problem fixed through them. You know more about electronics than I do (LOL) however, I do believe the RV sales/repair should be taking care of this issue for you.

I on the other hand own the Majestic brand washer and dryer and I am very dissapointed with them. The washer is broken already and is only 15 months old. Ugh!

Good luck, I hope your issue is a simple fix.