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Nova wall controller screen is blank or unresponsive

Steps to resolve:

  • Check the power supply (CTDC12) connection to the Nova wall controller
  • Check the Cat5e cable between the CSL Screen Link Module and the Nova — try a different port on the CSL
  • Re-pair the CSL to the C225 CPU if the connection has been lost
  • Replace the cable if the issue persists
  • If still unresolved, contact your installer — the CSL or C225 CPU may need to be replaced