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

1. undefined: Check if the connector between Main PCB, defrost controller, and defrost sensor is disconnected or loose. If loose: reconnect or repair the connector. 2. undefined: Measure defrost sensor resistance. If resistance is 0 ohms (short) OR infinite (open): replace the sensor. 3. undefined: If resistance is a readable value, cross-reference with temperature table. At 23F/-5C expect 38k; at 32F/0C expect 30k; at 41F/5C expect 24k; at 50F/10C expect 19.5k; at 59F/15C expect 16k. 4. undefined: If resistance is correct for the temperature: no fault — explain to customer. 5. undefined: If temperature-resistance check still fails after sensor replacement: replace Main PCB.

LG Refrigerators

Error Code dS F

Defrost Sensor Error

Moderate

Address soon - your appliance may not work properly

Also displayed as: dS F

How to Fix

1
Check if the connector between Main PCB, defrost controller, and defrost sensor is disconnected or loose. If loose: reconnect or repair the connector.
2
Measure defrost sensor resistance. If resistance is 0 ohms (short) OR infinite (open): replace the sensor.
3
If resistance is a readable value, cross-reference with temperature table. At 23F/-5C expect 38k; at 32F/0C expect 30k; at 41F/5C expect 24k; at 50F/10C expect 19.5k; at 59F/15C expect 16k.
4
If resistance is correct for the temperature: no fault — explain to customer.
5
If temperature-resistance check still fails after sensor replacement: replace Main PCB.

This Error Applies To

LG LFXS26973 Series Refrigerators

Service manual exact match: LFXS26973SService manual exact match: LFXS26973DService manual exact match: LFXS26973MService manual exact match: LFXS26973BService manual exact match: LFXS26973W