While replacing an old doorbell, which was working, my husband got the wires all mixed up and now we don't know what to hook up where. It looks as if it was wired for three doors but we only have two... so three sets of red and white wires (twisted together in pairs)and another which has red white and green. The doorbell unit itself has Back, Front and Transformer. Can someone please tell which wires go where?
Thanks in advance,
Deborah