Charging mode Refrigerant charging mode (25VNA8/24VNA9, communicating)

What the display is showing

Mode on the Infinity user interface, opened from the Installation and Service screen, used to check or set refrigerant charge. The screen offers weigh-in or heating check charge methods; the heating check runs the system at stage 5 with matched outdoor fan and indoor airflow and counts down while it stabilizes. A service-valve subcooling option appears only when outdoor and indoor temperatures are in range, otherwise it is greyed out.

Applies to: Carrier Infinity 25VNA8/24VNA9 communicating systems

What to do

1. On the Infinity control open Installation and Service, then Refrigerant Charging.
2. Pick the charge method on the Charging Mode Selection screen.
3. Wait for the stabilization countdown before reading pressures.

Models that show this code

7 models in Carrier Infinity 18VS 25VNA8

Other codes on the same units

• LED1 MOC red LED1 (sizes 25-60)
• LED3 MOC amber LED3 (sizes 25-60)
• LED200 MOC red LED (sizes 13, 24B)
• LED207 MOC amber LED (sizes 13, 24B)
• COMM LED Green COMM LED on - communicating
• Curtailment Utility curtailment shown on user interface
• ON Amber STATUS LED on solid - standby
• Status code recall Status code recall mode (25VNA8/24VNA9)