Outlets configured to deliver 220v should not be used directly for an RV application. The RV system requires 120 volts. Putting 220 volts into an RV electrical system will damage or destroy the appliances and other systems in the RV.
What happens when you hook 220 to a camper?
Normally it will take out the TV power supply. You might also have a blown fuse to the RV charging circuit if the engine was on and the trailer plugged into the tow vehicle when you plugged into the 220 volts. Good thing you caught the noise being wrong on the A/C quickly enough. It is expensive to repair or replace.
Is it OK to plug 220V to 110V?
Plugging a 220v device into a 110v outlet is not recommended. If you did, its highly likely that youll damage or destroy the appliance. If your device has no motor, then itll perform poorly, running on half the needed energy. If the device does have a motor, then the lower voltage can damage it.
Can a 240V appliance run on 120V?
Yes, in the same but reverse way if you connect 120V appliances to 240V supply then insulation designed for 120V supply get damage under 240V supply.
Can I plug my RV into 240 volts?
Although you cant usually plug your RV straight into your house, one exception is that Class A motorhomes tend to operate on 50 amps. That translates to needing 240 volts of power, and you can plug those RVs into your dryer outlet. You can then charge your motorhome just like you would at a campground.