Door bells wiring problem

Old 07-28-04, 08:50 AM
Visiting Guest
Posts: n/a
Door bells wiring problem

I would like to know how to wire two door chimes to one transformer using only one button?
Old 07-28-04, 09:07 AM
Join Date: Oct 2002
Location: Hamilton County, Ohio
Posts: 3,927
Upvotes: 0
Received 2 Upvotes on 2 Posts
Basically, run a low voltage, 3 conductor wire from the Front - Rear - and transformer screws on the primary chime to the same connections on the secondary chime. If you do not have a back door button, you can use 2 conductor wire to the Front and transformer screws only.

If your transformer is sized for one chime, you may need to replace it with a larger model. to get a solid " ding - dong " . Any big box home improvement store can help you with the sizing.
Old 07-28-04, 12:48 PM
Join Date: Sep 2000
Location: United States
Posts: 17,733
Upvotes: 0
Received 1 Upvote on 1 Post
Standard doorbell transformers are 10va. For two chimes, it is usually recommended that you get a 20va one. For three, get a 30va one. It depends a bit on the chime.

Thread Tools
Search this Thread
Ask a Question
Question Title:
Your question will be posted in: