I have an older house and want to change a light switch to a switch/outlet combo. The current switch has two wires only in the box. The new combo has a ground (green), and two lines on one side. The other side has a load and neutral (white). My question is, if this combo can be hooked up with the existing setup, how can it be done?
if this combo can be hooked up with the existing setup,..?
The answer to this question is NO
The box only contains a source or hot leg down to the switch and a switch leg back to the light fixtures. You will need to install a neutral and a ground into the box. Updated NEC now requires neutrals to be installed in boxes unfortunately your dwelling did not.
Hope this helped.