Error Code E rt
Ambient (Room) Temperature Sensor Abnormal — Room temperature sensor short or open
Moderate
Address soon - your appliance may not work properly
Also displayed as: E rt
How to Fix
- 1
Check CON7 connector (pins 17~18) between Main PCB and ambient sensor for loose or disconnected condition.
- 2
If connector is loose/disconnected, reconnect or repair the connector.
- 3
Measure ambient sensor resistance at CON7 pins 17~18: 0 ohm = short (replace sensor), Open/infinity = open (replace sensor).
- 4
Compare measured resistance to temperature chart: -5°C=38k, 0°C=30k, 5°C=24k, 10°C=19.5k, 15°C=16k ohms.
- 5
If resistance is normal, explain to customer.
- 6
If sensor is verified good but error persists, replace the Main PCB.
This Error Applies To
LG LRSOC2306 Series Refrigerators
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