Additional heat blocked symbol — Auxiliary heat prevented from running

What does Additional heat blocked symbol mean?

This symbol indicates that the additional heat source in the system is blocked from operating, typically due to mode selection, scheduling, or alarms.

• Selected operating mode blocks additional heat
• Scheduled blocking in menu 4.9.5
• An active alarm is blocking the additional heat

Click steps to track your progress.

1. 1

   Check the selected operating mode in menu 4.2.

2. 2

   Review scheduled blocking settings in menu 4.9.5.

3. 3

   Check the alarm log in menu 3 for any active alarms that might be causing the blockage.

4. 4

   If necessary, reset alarms or adjust settings to allow additional heat operation.