What does Joyoung's "E2" mean?

Answer:

If the manual shutdown temperature recovery after boot or E2 to check the temperature sensor; IGBT (thermistor) whether the output MCU19 modification; foot; heating E2; fan inlet and outlet is blocked. Whether the fan is rotating, the fan power supply is normal, the speed is low or not.If you do not have a certain professional knowledge, please send professional maintenance. Because the control panel is directly rectified by heavy current. In danger.

Now, intelligent electronic products are usually controlled and managed by MCU. When the IGBT is overheated (over 100 degrees Celsius), turn off the output, the digital tube shows "E2", and the buzzer calls at the rate of 1 times a second. The alarm status can not automatically quit, you need to manually shutdown to quit the alarm. When the temperature is normal, manual operation is normal.

E2 is the fault codeThis fault means: IGBT overheating (furnace overheating) alarm, and automatically shut down, stop working,