ALM-8576 Heat-Exchanger Temperature Alarm

Description

This alarm is triggered when BTS3012A heat exchanger works abnormally or the AC/DC power supply fails. This alarm occurs only to the BTS3012A heat exchanger cabinet instead of the air-conditioner cabinet.

Attribute

Alarm ID	Alarm Severity	Alarm Type
8576	Major	Fault

Parameters

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. 140:OSSU
3	Board No.	Number of the fault board 0:OSSU 0
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;
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

Impact on the System

If the reason for this alarm is that the heat-exchanger stops running, the temperature in the cabinet will rise gradually, thus leading to service interruption when the system starts high-temperature protection.
Note:
The heat exchanger can work normally either in DC or AC environment. Only when neither the AC power supply nor the DC power supply works properly, will the heat exchanger stop running.

System Actions

None.

Possible Causes

The heat exchanger in the cabinet fails.
There is no AC input.
AC power supply is out of phase.
There is no DC input.

Procedure

Check whether there are any correlated alarms
Check whether ALM-5988 No Mains Supply Alarm is reported on the LMT. Handle ALM-5988 No Mains Supply Alarm according to the corresponding handling suggestions. Check whether the alarm is cleared.

Y=> The alarm handling ends.

N=> Go to Step 2.

Check whether ALM-8588 Voltage Regulator Alarm is reported on the LMT. Handle ALM-8588 Voltage Regulator Alarm according to the corresponding handling suggestions. Check whether the alarm is cleared.

Y=> The alarm handling ends.

N=> Go to Step 2.
Check the power supply of the heat exchanger
Measure with a multimeter the 220V input AC voltage and 24V DC voltage for the heat exchanger to view whether they are normal.

Y=> The heat exchanger fails. Huawei Customer Service Center.

Y=>The AC/DC power supply fails. Huawei Customer Service Center.