ALM-3970 Inner Circulation Fan Abnormal

Description

This alarm is reported when the inner circulation fan is abnormal.

Alarm ID	Alarm Severity	Alarm Type
3970	Critical	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. 85:APM
3	Board No.	Number of the fault board 0:PMU0
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. 9: BTS3002C
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 ambient temperature and humidity of the BTS may be affected when the fan stops working.

None.

This alarm is reported when the inner circulation fan is abnormal.

Check the connection of the power cables of the inner circulation fan.
1. Check if there are problems in the connection of the power cables of the inner circulation fan.
  Y=>Go to Step b.
  
  N=>Go to Step 2.
2. Solve the problem in the connection of the power cables and see if the alarm is cleared.
  Y=>The alarm is cleared. Alarm handling is completed.
  
  N=>The alarm is not cleared. Go to Step 2.
Replace the inner circulation fan and see if the alarm is cleared.
Y=>The alarm is cleared. Alarm handling is completed.

N=>The alarm is not cleared. Please contact Huawei Customer Service Center