⚠️ Safety Warning: Appliance repair involves electricity, gas, and moving parts. Always disconnect power before working on any appliance.
Error Code: Refrigerator Difficulty: Easy
Problem: Open freezer thermistor circuit (253 series upright freezer code)
How to Fix Refrigerator Error
- UNPLUG freezer.
- Remove interior panel to access evaporator and thermistor.
- Locate freezer temperature sensor clipped to evaporator coil.
- Disconnect connector and test resistance (should read 5k-15k ohms).
- If reading OL (open circuit), replace thermistor.
- Ensure new sensor makes full contact with evaporator tubing.
- Secure with original clip or high-temp adhesive.
- Restore power and verify temperature display returns to normal within 10 minutes.
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Recommended Replacement Part
Still Not Working?
If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.
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Expert: Mike Sullivan
EPA Section 608 Certified Technician with 18+ years experience.
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