Step 1: Check the wires behind the button, in the junction box, and on the transformer.
They may be damaged or loose. If they’re loose, tighten them; if damaged, go to Step 2.
Step 2: Cut out the damaged area.
If the wires are sound, look for corroded terminals. Remove the plate from the button and look at the terminals.
Step 3: Strip 1 inch of insulation off the ends of both wires so you can twist them together and then tape them.
If necessary, clean them with electrical contact cleaner. You can also take the screws off the wires and sand off the corrosion using fine sandpaper.
Step 4: If it chimes continuously, removes the button plate.
Make sure the wires aren’t pinched or touching.
Step 5: Tighten the screws. Be sure to keep the wires separate.
If the bell sounds as though it’s buried under blankets, it probably needs cleaning. Use a cotton swab or soft toothbrush dipped in isopropyl (rubbing) alcohol to clean it.
