e-21
Moderate
Samsung · Ovens & Ranges
Oven temperature sensor error (open or high resistance)
Quick Answer
Error code E-21 on your Samsung Ovens & Ranges means: Oven temperature sensor error (open or high resistance). This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
Likely Causes
How to Fix It
1
Step 1: Turn off the oven and unplug the range for 1 minute.
2
Step 2: Plug back in. If the error returns, test the oven temperature sensor resistance (~1080 ohms at room temperature).
3
Step 3: Replace the sensor if readings are abnormal.
4
Step 4: Check wiring and connectors between the sensor and control board.
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
Oven temperature sensor
Wire connector
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