What to check, in order
- Check it's still cooling
If it is, you have a little time, but don't leave it.
- Test the sensor
It can be tested for continuity with a multimeter, and replaced if it fails.
When to call an engineer
If you don't have a multimeter or can't reach the sensor.
Parts people end up buying
Only if the checks above point to a part. Match it to your model number first: it's on a label inside the fridge, usually on a side wall, or on the back.
- Fridge thermistorSearch on Amazon
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Quick answers
What does the E1 error code mean on a fridge or freezer?
A thermistor fault: the temperature sensor isn't reading correctly, so the fridge can't regulate itself.
Can I fix E1 on a fridge or freezer myself?
Moderate (about 30 minutes). Start with: check it's still cooling; test the sensor. If you don't have a multimeter or can't reach the sensor.
Is E1 on a fridge or freezer worth repairing?
Worth fixing. Fix it, and don't put it off. A cheap sensor left alone means spoiled food, which will cost you more than the part.
About this code
Unbranded and less common appliances don't publish one shared code list, so this page gives the most common meaning across makers. Your manual is the final word, and the model number that finds it is on a label inside the fridge, usually on a side wall, or on the back.
Last reviewed October 2026.