Hi eric43,
Welcome to the forum!
The Master Control Panel 5500 only works with either Beomaster 5500, 6500 or 7000, hence if you have a different system installed, then it will just say "no contact" whenever you try to do anything.
If you can let us know what other equipment you have installed in the house, I'm sure we can help you solve the problem!
Kind regards,
Steve.
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