How do I adjust the volume on this door bell, I can barely hear it.
Thank you for your question. The BK140 series utilizes a "built-in" transformer, which is mounted and located in a junction box, behind the chime. This built-in transformer is rated at 10 VA or watts, in power. There is no volume control on the 2-note chimes and the only way to increase the volume, would be to replace the transformer with a transformer of higher wattage. Unfortunately, this would require rewiring, as the replacement transformer would need to be remotely mounted from the chime unit. For further information and explanation, please contact the NuTone Technical Support group at 888-336-6151.
Date published: 2014-07-07