Are you saying, that the 120 volt outlet does not have power?
Are you on shore power or running the generator?
What make and model RV do you have?
This information will help others to assist you.
Paul
__________________ Big Dog House On Wheels
2013 Coachmen Freelander 28QB on 2012 4500 Chevrolet Chassis
Paul
2007 sierra 325rg7 fifth wheel by forest river. Onshore power. Have checked all gfci outlets have used voltmeter. All the info from owners manual says there is a inverter switch for the TV outlet. Looked and can't find one. [emoji848]
If you shut off shore power and do not have the generator running (i.e. boondocking) is the outlet working then? If yes, then that would indicate the inverter is powering it.
Someone else with knowledge about switching between inverter and shore power settings will have to help you as I do not have an inverter.
Paul
__________________ Big Dog House On Wheels
2013 Coachmen Freelander 28QB on 2012 4500 Chevrolet Chassis
Paul