If you notice the light on your doorbell button is no longer lit, you can easily fix this with a new lighted doorbell button. All you will need is a screwdriver and a new doorbell button.
Step 1 - Shut Down the Power
It is important that you switch the power off through your circuit breaker so you don't hurt yourself during the repair process.
Step 2 - Unscrew the Doorbell
Unscrew the screws holding the doorbell in the wall and gently pull it off the wall. Inspect the wires to make sure their covering is intact. Exposed wires can be a fire hazard.
Step 3 - Dismantle and Replace
Disconnect the wires leading to the old doorbell button and attach them to the new one, then screw it back into the wall. Be sure to attach the wires exactly the way they were in the old button.
Step 4 - Test it Out
If you've installed your doorbell properly, you should be able to turn the power back on, press the button, and hear the chimes in your home. If the sound doesn't go off, you may have missed a wire, so head on back to step one and try again!