check the lighting equipment of the oven and check whether the control panel of the oven works normally.

1. Check whether the lighting equipment of the oven works normally: you can open the oven door and observe whether the lighting equipment is on. If the light bulb doesn't work, you can try to replace it. If the light bulb lights up, but the control panel still reports a fault, the next step needs to be checked.

2. Check whether the control panel of the oven works normally: you can try to use other function keys to test whether the response of the control panel is normal. If other function keys fail, you can try to reset the control panel. If the control panel is normal, but the lighting control still fails, further inspection is needed.