Kenmore Refrigerator Error Code Er rt: Meaning and Fix
Also shown as: Er rT
Reading the refrigerator display
On a refrigerator the code shows on the control panel or dispenser display. Some models flash a letter or alternate two characters; hold the code in view and note both. Check the model-number prefix first: the same Kenmore code can mean different things depending on the manufacturer.
Kenmore is a private label, and the factory that built your unit decides which fault codes it shows. The first digits of a Kenmore model number (110, 417, 665, 795, 796 and so on) tell you whether Whirlpool, LG, Electrolux or Frigidaire made it. Check the model label on your unit before using any chart.
What causes Er rt
- A temperature or level sensor that has drifted out of range or failed open/short
- Poor connection at the thermistor
- A control board input that misreads the sensor signal
- A loose or corroded sensor connector or broken lead wire
How to fix it
- Unplug the appliance and locate the sensor named for this fault in your service sheet or parts diagram.
- Inspect the sensor, its lead wire and plug for damage, moisture or corrosion; clean contacts and reseat the connector.
- Reseat and measure the sensor.
- Measure the sensor resistance with a multimeter and compare it with the value expected at room temperature.
- Replace the sensor if the reading is open, shorted or far from spec.
- Power back up and run a short cycle to confirm the code does not return.
Parts you may need
| Part | Part no. | Buy |
|---|---|---|
| Refrigerator Defrost Thermistor Kit | 12002355 | Find part |
Part numbers are OEM references; confirm fit by your model number before ordering. Some links are affiliate links; we may earn a commission at no extra cost to you.
Questions
What does error Er rt mean on a Kenmore refrigerator?
The thermistor in the fresh-food compartment has failed. Kenmore sells units built by several manufacturers, so the code table that applies depends on who made your model; use the model number to confirm.
Can I keep using my refrigerator while Er rt is showing?
Often yes for a short while, but with reduced performance because the control is running blind; get it checked before it causes a heating or flooding problem.
How do I clear Er rt, and can I fix it myself?
Cancel the program, switch the appliance off and leave it unplugged (or the breaker off) for about five minutes, then restart. The code only stays cleared if the underlying problem is fixed, so work through the steps above. Parts here involve electronics, heating or sealed components, so consider a qualified technician if the basic checks do not clear it.
Other Kenmore refrigerator codes
Sources
Part numbers are OEM references; confirm fit by your model number before ordering. Meanings compiled from manufacturer and parts-retailer documentation; see sources below. Unplug the appliance before opening it.
Applies to models including Kenmore Elite 795 series (LG-built), Kenmore 106 series (Whirlpool-built), Kenmore 253 series (Frigidaire-built).