Hi,
If the temperature is between the upper and lower threshold limit the device is considered normal otherwise it is abnormal.

Refer to: https://support.huawei.com/hedex/hdx.do?docid=EDOC1100096146&id=EN-US_CLIREF_0176920707&lang=en
And if the temperature of AP is high than the threshold, AP cannot work properly and it will affect the WLAN services.
See: https://support.huawei.com/hedex/hdx.do?docid=EDOC1100096146&id=EN-US_ALARMREF_0176926737&lang=en