E201 - Indoor and outdoor unit communication error (Pre-tracking failure)

What does E201 mean?

This error occurs when there's a communication failure between the indoor and outdoor units, either during initial power-up tracking or if the actual number of indoor units doesn't match the setting.

• Communication tracking failure after initial power.
• Incorrect indoor unit quantity setting in outdoor unit.

Click steps to track your progress.

1. 1

   Check the electrical connections between the indoor and outdoor units.

2. 2

   Verify the quantity setting for indoor units in the outdoor unit's configuration.

3. 3

   Ensure power is supplied consistently to both units.