It sounds like you didn't, but you may have relied on the position on
the swtich to match the position on the new switch. Some are arranged
differently from others.
Another problem is that you say you plugged in the wires. It's better
to wrap the wires around the screws than relying on the plugging in to
work. You can use a little screwdriver in the hole next to the wire
to release the grip, to remove the wire.
OTOH, I'm guessing it might not be gripping even a little and that
would be the reason it's not working. In that case you might be able
to pull the bad wire out. If that works, you can wrap the wire around
the screw. If it starts to pull out but won't go all the way, you
will probably have made it make contact well enough to work after all.
Most people here will tell you that it's still best to removed all
back-stabbed wires, but they're not as lazy or lethargic as I am.
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.