What does erorr codeE3 mean on warming blanket?

Error code E3 on a warming blanket typically indicates a problem with the temperature sensor or an issue with the heating element. This could be due to a malfunction or a short circuit in the wiring. To resolve the issue, it's recommended to unplug the blanket and check for any visible damage, or refer to the user manual for specific troubleshooting steps. If the problem persists, contacting customer support or considering a replacement may be necessary.