F
sl
Moderate
Frigidaire · Refrigerators
Sensor Low - Temperature Sensor Reading Too Low Resistance
Quick Answer
Error code SL on your Frigidaire Refrigerators means: Sensor Low - Temperature Sensor Reading Too Low Resistance. This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
  1. Temperature sensor has partially shorted internally
  2. Sensor wiring has a partial short where insulation is damaged
  3. Moisture has entered the sensor connector creating a low-resistance path
  4. Sensor is physically damaged
How to Fix It
1
Unplug the refrigerator and locate the affected temperature sensor
2
Disconnect the sensor and measure resistance (a reading much lower than expected indicates a partial short)
3
Inspect the sensor connector and wiring for moisture, corrosion, or damaged insulation
4
Dry the connector area thoroughly and retest; if still low, replace the sensor
5
Replace the temperature sensor if resistance remains below the expected value
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Temperature sensor/thermistor (model-specific)
Wire connector repair kit
Related Error Codes
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