Patio talk button is not working. All other functions (except CD player, of course) are working and the Master can answer a call initiated by a remote or talk to
The IM-4406BL Master station works fine (except the CD player, of course), but the Inside/Patio Talk button no longer functions. It was a little sketchy for a while...had to push it just right, but now it does nothing. The door speaker button still works fine and the master can answer calls initiated and controlled by remotes, but not initiate an intercom call. How do I get access to that button to repair or replace it?
Home Security - Broan-NuTone - Nutone IMA4406 Intercom Master Station White