EF (7100) - Total capacity error

What does EF (7100) mean?

The Mitsubishi Electric PUMY Air Conditioner system has detected an issue with the total capacity of the connected indoor units relative to the outdoor unit. This usually means the combination of units is mismatched.

• Incorrect combination of indoor and outdoor units during installation
• Misconfigured capacity settings for the system

Click steps to track your progress.

1. 1

   Note the error code displayed on the remote controller or outdoor unit.

2. 2

   Power off the Mitsubishi Electric PUMY Air Conditioner system at the main electrical breaker.

3. 3

   Wait for at least 30 seconds, then restore power to the system.

4. 4

   If the error persists, contact a qualified service technician to verify the compatibility and configuration of all connected units.