Monarch Fault Detail: E94
rr94 – Authorization Failure

This fault typically occurs when a non-original (non-OEM) circuit board is used.
You may try disabling the authorization feature if available.

Sub-code Breakdown and Solutions

• Sub-code 103 – Authorization failed between the control system and the car top board.
  Solution: Contact your dealer or manufacturer.
• Sub-code 104 – Authorization failed between the control system and the in-car display board.
  Solution: Contact your dealer or manufacturer.
• Sub-code 107 – Car top board authorization failed.
  Solution: Contact your dealer or manufacturer.

• Sub-code 201 – Authorization failed between the main board and the front landing call board (201 indicates front door, 1st board).
  Troubleshooting:
  • Is the front landing call board an encrypted product?
  • Has the encryption key been correctly burned into the board?
  • Is the board address set correctly?

• Sub-code 301 – Authorization failed between the main board and the rear landing call board (301 indicates rear door, 1st board).
  Troubleshooting:
  • Is the rear landing call board an encrypted product?
  • Has the encryption key been correctly burned into the board?
  • Is the board address set correctly?

• Sub-code 401 – Authorization failed between the car command board (COB) and the main board.
  • 410: 1st front door COB
  • 412: 1st front door CCB
  • 420: 1st rear door COB
  • 422: 1st rear door CCB
  Troubleshooting:
  • Is the command board an encrypted product?
  • Has the encryption key been correctly burned into the board?
  • Is the board address set correctly?

✅ Pro Tip: Always use original parts and ensure all encrypted components are properly programmed. For persistent issues, reach out to your authorized dealer or the manufacturer directly.