The white wires are not neutrals (a neutral only occurs in a 240 volt
circuit and carries the unbalanced load of the two legs.) And most likely,
one or two of the white wires is what is called a switch leg, that is, it is
actually a ungrounded (or black) wire run to the switch to be "switched".
(But actually it's a "hot" wire in disguise).

As two others have told you, get someone knowledgeable as you could be very
well setting up a shock hazard in your home. It's important that certain
wires be isolated from the metal of the fixtures and appliances, others
intentionally connected to ground, and only someone with experience can tell
the difference.

What if someone were to be seriously shocked while changing a light bulb due
to your inexperience? It's not worth the low cost of being safe.


wrote in message
...
I have a single pole switch outlet combo device in my kitchen. The
switch started to make a loud pop when the light was turned off, not
on. I tried to replace the device and here is what happened. There
are three wires in the box. I know the one hot and the other are
neutral. No ground wire. I wired hot to hot, and the neutrals to the
other two silver and then light brass screw. Powered on and the
switch worked, no plug, unless switch was on. Reversed the two
neutrals and now only outlet works, no switch. What did I do. There
are two screws for the hot, one labeled common and the other unlabeled
and they are both connected by a brass tab. Help. The previous combo
was not grounded, two pronger, 10A. New is grounded 15A.