How do I fix error code F dS on a LG refrigerators?

1. undefined: Step 1: Check connector between Main PCB, defrost controller, and sensor — if loose or disconnected, reconnect or repair connector. 2. undefined: Step 2: Measure resistance at CON8 pins 26-25. If resistance = 0 ohm (short), replace defrost sensor. 3. undefined: Step 3: If resistance = infinity (open), proceed to Step 4. 4. undefined: Step 4: Measure resistance and check against table: 23°F/-5°C=38kΩ, 32°F/0°C=30kΩ, 41°F/5°C=24kΩ, 50°F/10°C=19.5kΩ, 59°F/15°C=16kΩ. If resistance is normal, explain to customer. 5. undefined: Step 5: If resistance does not match table, replace defrost sensor. 6. undefined: Step 6: If all above are normal, replace the refrigerator main PCB.

LG Refrigerators2023–present

Error Code F dS

Q: What does error code F dS mean on a LG refrigerators?

Defrost Sensor Error Short circuit or disconnection of defrost sensor; Loose connector between Main PCB, defrost controller, and sensor at CON8 pins 26-25

Defrost Sensor Error

Moderate

Address soon - your appliance may not work properly

What This Means

Short circuit or disconnection of defrost sensor; Loose connector between Main PCB, defrost controller, and sensor at CON8 pins 26-25

How to Fix

1
Step 1: Check connector between Main PCB, defrost controller, and sensor — if loose or disconnected, reconnect or repair connector.
2
Step 2: Measure resistance at CON8 pins 26-25. If resistance = 0 ohm (short), replace defrost sensor.
3
Step 3: If resistance = infinity (open), proceed to Step 4.
4
Step 4: Measure resistance and check against table: 23°F/-5°C=38kΩ, 32°F/0°C=30kΩ, 41°F/5°C=24kΩ, 50°F/10°C=19.5kΩ, 59°F/15°C=16kΩ. If resistance is normal, explain to customer.
5
Step 5: If resistance does not match table, replace defrost sensor.
6
Step 6: If all above are normal, replace the refrigerator main PCB.