The table below shows what the error codes on our electric blankets mean:
This applies for the following article numbers: BW-4780 / BW-4781 / PD-3803
| Error Code | Cause | Solution |
| E1 | The connector isn't connected tight enough | Turn off the power and unplug the item from the socket. Reconnect the connector tighter. Put the plug in the socket and turn on the power. |
| E2 | The inside temperature of the controller is too high | Turn off the power and let the controller cool down. Once the controller is cool, you can turn the power on again. |
| E3 | No calibration or abnormal calibration of the controller | Press "+" and "Timer" together, then plug in the power cord and wait about 2 seconds for the calibration setup. After about 5 seconds, the controller automatically exits the calibration setup, this means the calibration is successful; If the calibration setup remains, the calibration has failed. |
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