There are seven ACs in RCY Modular DC, four have drain abnormal alarms.
[Major ]Drain abnormal
1.check the real level of water in water plate.
2. check low level float and high level float state in the water plate, found that the sheet iron which used to protect the water level float during transport was still there.
The sheet iron make the sheet iron cannot move based on water level.
Mistakenly, Our team didn’t remove the Protection steel, it was forgotten totally and Also Huawei Supervisor didn’t notice it
After remove all the 7 sheet irons ,the issue were solved and alarms disappeared automatically .
All Huawei engineers / supervisors will be much careful in the future.to avoid such mistake or any mistake happen again.