Garage Door wall button opener
The wall button to my garage door must be getting worn out. It is old and when I push it, it may or may not open the door. If I fiddle around with it, it will finally open the door. I have bought a new very simple door opener button but do not know how to install it. It has two screws inside and two that mount to the wall. I don't know much about electricity so am not sure if I have to throw the breaker that goes to the garage. I really don't want to have to do that because I am not sure which breaker it is so if I start throwing breakers I will have to reset all clocks, DVD etc to find the right one. Please advise. I would like to take care of this myself instead of calling an electrician.