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Tiffin Motorhomes Knowledge Base

How do I reset my multiplex lighting system?

To reset the multiplex lighting system in your Tiffin motorhome (typically Firefly or Spyder Controls system), follow these steps:

🔁 Basic Multiplex Reset Procedure

Turn off all 12V power to the coach:

  • Use the battery disconnect switch or
  • Pull the 12V house battery fuse/breaker temporarily.
  • Wait at least 60 seconds:
  • This ensures full power discharge from the control modules.

Restore 12V power:

  • Turn the battery disconnect switch back on or reinsert the fuse.
  • Check switch panels:
  • After reboot, the panels should reinitialize.
  • Lights and other functions should now respond normally.

🔧 If That Doesn’t Work

  • Look for a specific reset button: Some Spyder/Firefly panels have a hidden or recessed reset button—press with a paperclip.
  • Cycle the Master Switch: Some systems reset when toggling the “Master Light” switch 5 times quickly.
  • Inspect fuses for the control modules: Blown fuses can disable specific zones.

🔍 Still Dead or Buggy?

  • You might have a failed control module or corrupted software. In that case:
    • Call Tiffin Tech Support: 256-356-0261 (Option 2 → Option 1)
       
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