What It Means
- Zone air jumper not selected

Zone controller
Air selected for fewer than two zones. No air is selected for zone 1 or, 3. If a zone air selection jumper is left off of a zone that issues a heat or cool demand. In this case the system will assume that a PIAB of 100 is required to service the zone. Make a zone air jumper selection. If jumpers are in place, replace the zone control panel.
Zone air jumper not selected
HARMONY III, X9953
Continue in ACLogics with guided diagnosis for your equipment and symptoms.