yes, it sounds like one 'side' of your dual breaker on the generator is tripped, and YES, it does have two although you may only see ONE(a second breaker is sometimes hidden under the generator cover).... first, try manually tripping the main generator breaker on the generator itself, then flip it back on.(you can even do this while it is running)... now you should have power to all outlets and ac units within your coach.
if not, you may have to uncover the secondary generator breaker and do the same.
what can cause this?
your generator has a certain amount of 'output' power, and it shares that output Amperage with two 'hot' lines, split back to your breaker box. Each 'hot line' SIDE takes care of a certain number of items/breakers, with some items/outlets/air conditioner on ONE side, and the other items/outlets/air conditioner on the other side. IF you use an air conditioner and the microwave at the same time, you could trip THAT side of the generator's dual breakers. You may think that you have enough Amperage from the generator to run both items at the same time, and you probably DO, but you probably ALSO have other items running on that side that you may not be thinking about - Water Heater, Battery Charger, etc. These can be large draw items if they are ramping up usage at the same time.
To combat this, in times when you are running both AC units and other things while on the generator, use your MAGNUM Inverter panel's 'SHORE' button - turn it down to 5 or 10, and push in the large round knob to SET it to this number. Now, the Charger will only use this amount of amps. Also, turn off the 'Electric' side of your Water Heater, if it is also on.
This gives you the most amps from the generator to use for all the 'necessary' items you need when in this situation. When you get back to 'normal', then you can reset the SHORE button setting to 30a, which is standard, or even higher if you need the batteries to be charged faster, or less if you don't need to worry about the batteries charging fast. 5 or 10 is a 'trickle' charge, similar to your Alternator's charge output when driving, and 50 or 60 would be for 'really' immediate and full charging very quickly, but little room to power anything else while the charger is in it's BULK mode, otherwise you could then also trip a breaker. : )
fun, ain't it?! : )
'14 Palazzo 33.3 bunkhouse 34' diesel
KingTailgater2 Dish HD, 100w/5a SOLAR, BlueOx
100,000+mi since '14 - US, Alaska, Canada - Northwest, GA! (also, '14 Gulfstream Amerilite and '07 ForestRiver Rockwood) : )