replacing an older NuTone chime
I'd like to replace my NuTone KB-10 with this one but it appears there are only two wires attached to my KB-10, whereas the instructions for the LA174WH show three wires (for a single doorbell). Am I missing a common wire, and does it matter?
Thank you for your question on the model KB10 and LA174 door chimes. The LA174 is not a direct replacement for the KB10. While the KB10 does utilize two wires for a single door, the LA174 requires a third (common) wire.
Date published: 2013-10-23