jack wrote:
I have a doorbell button at the front door and chimes upstairs and
downstairs. The old chime upstair quit so I bought a new chime, which
required a diode on the button. I did this, but now the downstairs
chime dosn't work. ( It does not require a diode) The new chime
works fine.. Is there anything I can wire in to the lower unit to
counteract the diode?

Hi,
Tried reversing diode? From ----|------- to ------|--------.