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CN1610 Fan Warning Low speed detected

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fas-systems
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hw
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Applies to

CN1610

Issue

CN1610 show tech-support log show "Warning Low speed detected" errors.
 
show tech-support：
 CN1610-1 BSP[envMonTask]: cpu_boxs.c(2128) 159639 %% Setting normal fan speed !
 CN1610-1 BSP[envMonTask]: cpu_boxs.c(1751) 159638 %% Requesting normal fan speed !
 CN1610-1 BSP[envMonTask]: cpu_boxs.c(1743) 159636 %% Requesting maximum fan speed !
 CN1610-1 BSP[envMonTask]: cpu_boxs.c(1646) 159635 %% Fan #1: Warning Low speed detected: 3000 rpm !
 CN1610-1 BSP[envMonTask]: cpu_boxs.c(2128) 159628 %% Setting normal fan speed !
 CN1610-1 BSP[envMonTask]: cpu_boxs.c(1751) 159627 %% Requesting normal fan speed !
 CN1610-1 TRAPMGR[boxs Req]: traputil.c(777) 159626 %% Fan state change alarm: Unit: 1  Fan ID: 1  Event: 3 -Operational
 CN1610-1 BOXSERV[boxs Req]: boxs.c(1095) 159625 %% Unit 1 fan 1  OPERATIONAL event (3)occurred.
 CN1610-1 TRAPMGR[boxs Req]: traputil.c(777) 159624 %% Fan state change alarm: Unit: 1  Fan ID: 1 Event: 4 - Failure
 CN1610-1 BOXSERV[boxs Req]: boxs.c(1095) 159623 %% Unit 1 fan 1  FAILURE event (4) occurred.
 CN1610-1 BSP[envMonTask]: cpu_boxs.c(1743) 159621 %% Requesting maximum fan speed !
 CN1610-1 BSP[envMonTask]: cpu_boxs.c(1716) 159620 %% Detected 3 fans operational !
 CN1610-1 BSP[envMonTask]: cpu_boxs.c(1622) 159619 %% Fan #1: Critical Low speed detected: 2640 rpm
 
Fans:
Unit Fan Description    Type      Speed         Duty level    State
---- --- -------------- --------- ------------- ------------- --------------
1    1   Fan-1          Removable 6180          50%           Operational
1    2   Fan-2          Removable 6240          50%           Operational
1    3   Fan-3          Removable 6420          50%           Operational
1    4   Fan-4          Removable 6300          50%           Operational

Power Modules:
Unit     Power supply   Description        Type          State
----     ------------   ----------------   ----------    --------------
1        1              Internal AC-1      Removable     Operational
1        2              Internal AC-2      Removable     Operational

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