ALM-5638 Ambient Humidity Too High

Description

This alarm is reported when the ambient humidity is higher than the upper threshold. The default humidity upper threshold is 80%.

Alarm ID	Alarm Severity	Alarm Type
5638	Major	Fault

ID	Name	Meaning
1	Site No.	Number of the site where the faulty board or module is located Value range: 0-2047
2	Board Type	Number of the type which the faulty board belongs to. 72:DPMU 133:APM/APMU
3	Board No.	Number of the fault board Value range:0-8:DPMU/APMU/APM
4	PassNo	Number of the passage where the faulty board is located.
5	SubLink No.	Alarm sub-category number 255: None
6	Cell Index	Index of the cell where the board or module is located 0-2047: Cell index of the faulty cell in the data configuration 65535: None
7	Site Type	Type of the site where the faulty board is located. 12:BTS3012; 13:BTS3006C; 14:BTS3002E; 15:BTS3012AE; 16:BTS3012 II; 17:DBS3900 GSM; 18:BTS3900 GSM; 19:BTS3900A GSM;
8	RackNo	Number of the rack where the faulty board is located.
9	BoxNo	Number of the subrack where the faulty board is located.
10	SlotNo	Number of the slot where the faulty board is located.
11	Site Name	Site Name
12	Alarm Attribute	Alarm Character 0:Normal 1:Transient Count

The BTS hardware may be damaged if this alarm occurs.

None.

The ambient humidity is too high.
The setting of upper humidity threshold is not reasonable.
The humidity sensor fails. The cables that connect the humidity sensor are faulty.
The PMU of the power system is faulty.

Query the current temperature of the cabinet.
1. Check whether the current temperature of the cabinet is too high:
  Y => The temperature is too high. Go to procedure 3.
  
  N => The temperature is within the range. Go to procedure 2.
Check the threshold of the ambient humidity alarm.
1. View the threshold of the ambient humidity alarm, and check whether the upper humidity threshold is correct:
  Y => The setting is correct. Go to procedure 3.
  
  N => The setting is wrong. Go to step b.
2. Change the threshold of the ambient humidity alarm.
3. Check whether the alarm is cleared:
  Y => The alarm is cleared. The alarm handling ends.
  
  N => The alarm is not cleared. Go to procedure 3.
Check the air conditioner or the heat exchanger.
1. Check whether the air conditioner or the heat exchanger is functional:
  Y => The air conditioner or the heat exchanger is functional. Go to procedure 4.
  
  N => The air conditioner or the heater exchanger is faulty. Go to step b.
2. Repair the air conditioner or heat exchanger.
3. Check whether the alarm is cleared:
  Y => The alarm is cleared. The alarm handling ends.
  
  N => The alarm is not cleared. Go to procedure 4.
Replace the temperature and humidity sensor.
1. Replace the temperature and humidity sensor.
2. Check whether the alarm is cleared:
  Y => The alarm is cleared. The alarm handling ends.
  
  N => The alarm is not cleared. Contact Huawei Customer Service Center.