Huawei Airbridge cBTS3612 Maintenance Manual page 56

On-site Maintenance Manual
Airbridge cBTS3612 CDMA Base Station
If the above problems are not solved after the relevant BTRM
has been reset, replace that module.
VII.
BTS RF fan module failure
RF fan module failures include:
The fan monitoring board is unable to read the temperature
l
sensor;
The fan is not running smoothly;
l
The fan monitoring board generates a high-temperature
l
alarm;
The fan monitoring board is unable to control the fan
l
speed.
Follow the handling process below. Go to next step if the
problem cannot be solved with the current one:
Check if the fan cover is correctly and reliably connected;
1)
2) Replace the fan monitoring board or the relevant BTS RF
Fan Module.
Chapter 3 Component Failure
3-19
Handling