Recommended solutions:
1. Observe for 5 minutes and see whether the
alarm will be eliminated automatically;
2. Contact after-sales service personnel
Recommended solutions:
1. Confirm that external ambient temperature is
within the specified range of operating
temperature;
2. Check whether radiation air inlet is blocked;
3. Whether radiation fan is blocked;
4. Check whether the location of installation is
appropriate or not;
5. Observe for 30 minutes and see whether the
alarm will be eliminated automatically;
6. Contact after-sales service personnel