Carrier · Air conditioner

LD5 MOC green LED LD5 (sizes 25-60)

Normal status Carrier Infinity 19VS 24VNA9

What the display is showing

Green LED LD5 on the inverter (MOC) board, sizes 25 to 60. Steady on means the 5 V link between the AOC and MOC is OK. Off means no power.

Applies to: Carrier Infinity 25VNA8/24VNA9 inverter board (sizes 25 to 60)

Models that show this code

9 models in Carrier Infinity 19VS 24VNA9

24VNA924VNA91324VNA92424VNA92524VNA93624VNA93724VNA94824VNA94924VNA960

Other codes on the same units

97 DC over voltage lockout
98 High torque event
99 High torque lockout
LD1 MOC red LED LD1 (sizes 25-60)
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)

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Source: Carrier 25VNA8/24VNA9 service manual, Variable Speed Drive LED Location and Description, p.26-27. Summarized in our own words; check the original manual for your model.

For licensed technicians. Gas, electrical and refrigerant work must be done by a qualified, licensed person. Shut off power and gas before servicing, never bypass a safety control, and follow the manufacturer’s manual for the exact model; it and local codes always take priority. HVACopedia is not affiliated with any manufacturer; brand and model names only identify the equipment.