Fujitsu · 410A Multi-Zone Mini-Split Systems
LED 401 and LED 405 are lit, indicating the branch box is functioning as the primary unit in a multi-unit setup. This is a normal status.
Click steps to track your progress.
No action needed; this indicates a normal operating status for the primary branch box.
Confirm that this branch box is indeed intended to be the primary unit in your system's configuration.
If other issues are present, consult other diagnostic steps for the specific problem.