Bosch Washing Machine Error Code E13 — Overheating Detected
What this means
Error E13 means the water temperature has exceeded safe limits. This is typically caused by a faulty heating element that stays on too long, a defective temperature sensor (NTC), or a control board malfunction. The washer will stop to prevent damage to clothing and internal components.
Step-by-step fix
4 stepsPower cycle the washer
Unplug the machine for 5 minutes to allow it to cool down and reset.
If the washer feels hot to the touch, wait at least 15 minutes before opening.
Test the temperature sensor (NTC)
Access the NTC sensor near the heating element. Use a multimeter to check resistance — it should read about 5,000 ohms at room temperature.
Resistance should decrease as temperature increases.
Inspect the heating element
Check the heating element for signs of damage or short circuit. Test continuity with a multimeter.
A shorted heating element can stay on continuously, causing overheating.
Check the control board
If both the sensor and element test normal, the electronic control board may have a faulty relay keeping the heater on.
When to call a professional
If the heating element or control board needs replacement, or if overheating continues after replacing the NTC sensor.
Information compiled from manufacturer service manuals, official troubleshooting documentation, and appliance repair industry resources. This guide is for informational purposes only — always consult a qualified technician for complex repairs.
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