To Reset the Honeywell Lyric Controller Master code simply from the home screen select Security > Tools > enter your installer code "default is 4112" > Program > Down Arrow > Press Reset Master Code > Select Yes to being sure > it will take you back to the program menu > Select Back > Back > you should be at the home screen.

After you have reset the Lyric controller master code lets try to access the Master programming menu by selecting Security > Tools > enter the default master code 1234 > You should now have access to this menu and you can again change the master code to a code you will remember for security reasons.

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