ALM-8578 Heat Exchanger Extended Alarm

Description

This alarm is reported when the heat exchanger-related devices are abnormal, such as the internal and external fans, and air inlet and outlet.

Attribute

Alarm ID Alarm Severity Alarm Type
8578 Warning 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:OSSU0
4 PassNo

Number of the passage where the faulty board is located.
5 SubLink No.

Alarm sub-category number

0:The temperature sensor on the monitoring board of the heat exchanger is faulty.

1:The temperature sensor at the air inlet of the heat exchanger is faulty.

2:The temperature sensor at the air outlet of the heat exchanger is faulty.

3:The internal circulation fan is abnormal.

4:The external circulation fan is abnormal.

5:Over high temperature

6:Hardware fault

7:The heater of the heat exchanger is faulty.

8:Over low temperature

9:The heat exchanger has no DC input.

10:The heat exchanger has no AC input.
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

None.

System Actions

None.

Possible Causes

  • 0: The temperature sensor on the monitoring board of the heat exchanger is faulty.
  • 1: The temperature sensor at the air inlet of the heat exchanger is faulty.
  • 2: The temperature sensor at the air outlet of the heat exchanger is faulty.
  • 3: The internal circulation fan is abnormal.
  • 4: The external circulation fan is abnormal.
  • 5: Over high temperature
  • 6: Hardware fault
  • 7: The heater of the heat exchanger is faulty.
  • 8: Over low temperature
  • 9: The heat exchanger has no DC input.
  • 10: The heat exchanger has no AC input.

Procedure

  1. 0, 1, and 2: Replace the monitoring board of the heat exchanger.

  2. 3 and 4: Check if the circulation fans are normal. If not, replace the faulty fans.

  3. 5: Check if there are other alarms. If yes, handle the alarms. If no, take measures to lower the temperature.

  4. 6: Replace the monitoring board of the heat exchanger.

  5. 7: Replace the heater.

  6. 8: Check if the heater is normal. If it cannot heat, handle the alarm according to the suggestions of handling the heater fault.

  7. 9: Check the DC input power cable of the heat exchanger and ensure that its connection is OK.

  8. 10: Check the AC input power cable of the heat exchanger and ensure that its connection is OK.

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