648PRO Displays Error Code 91

Cause:

  • Non-standard or extended error code
  • Represents issues with the lights

Core Issue:

  • Error code 91 indicated on model PRO48, 648PRO, Pro Series
  • Error 91 showing on the control, display panel of PRO48
  • EC 91

Steps to Verify Issue:

Answer:

Error code 91 on a Pro Series 648PRO indicates a problem with the lighting system.

No troubleshooting advice is available. Contact Factory Certified Service to schedule an appointment for repair.

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