Elevator Forum Spudwrenchtech @spudwrenchtech Forum Home | Recent Posts New Member Joined: Jan 1, 2010 Follow Profile Activity Topics: 0 / Replies: 1 AllTopicsReplies Reply I personally never seen 1155 fault on a tac20 ,but I have seen it on the new tac32 controllers fault code 1155 is (DZ Node A CAN communication is offl... 4 years ago Forum Technical Questions