Fan failure and how many fans and status for a 3725 Router

I have a fan reporting errors on a 3750 Router. How can I tell how many fans are in the router from a remote connection?

How long can you run the router with a fan failure before replacing it?

Oct 23 13:29:36.838 PDT: %FAN-3-FAN_FAILED: Fans had a rotation error reported.
Oct 23 13:30:06.839 PDT: %FAN-3-FAN_FAILED: Fans had a rotation error reported.
Oct 23 13:30:36.841 PDT: %FAN-3-FAN_FAILED: Fans had a rotation error reported.
Oct 23 13:31:06.842 PDT: %FAN-3-FAN_FAILED: Fans had a rotation error reported.
Oct 23 13:31:36.843 PDT: %FAN-3-FAN_FAILED: Fans had a rotation error reported.
Oct 23 13:32:06.845 PDT: %FAN-3-FAN_FAILED: Fans had a rotation error reported.
Oct 23 13:32:36.846 PDT: %FAN-3-FAN_FAILED: Fans had a rotation error reported.
Oct 23 13:33:06.847 PDT: %FAN-3-FAN_FAILED: Fans had a rotation error reported.
Oct 23 13:33:36.848 PDT: %FAN-3-FAN_FAILED: Fans had a rotation error reported.

#sh environment all
Power Supply:
Redundant Power System is not present.
Board Temperature:
normal.
Fan status:
Warning - low fan rpm condition detected.


#sh diag
3725 Backplane EEPROM:
        PCB Serial Number        : XXXXXXXXXXX
        Processor type           : 61
        Top Assy. Part Number    : 800-16147-02
        Board Revision           : C0
        Fab Part Number          : 28-4226-06
        Deviation Number         : 65535-65535
        Manufacturing Test Data  : FF FF FF FF FF FF FF FF
        RMA Number               : 255-255-255-255
        RMA Test History         : FF
        RMA History              : FF
        Chassis Serial Number    : XXXXXXXXXXX
        Chassis MAC Address      : xxxx.b35b.74d0
        MAC Address block size   : 48
        Field Diagnostics Data   : FF FF FF FF FF FF FF FF
        Hardware Revision        : 0.1
        Number of Slots          : 2
        EEPROM format version 4
        EEPROM contents (hex):
          0x00: 04 FF C1 8B 4A 41 45 30 37 33 31 30 36 36 55 09
          0x10: 61 40 02 59 C0 46 03 20 00 3F 13 02 42 43 30 85
          0x20: 1C 10 82 06 80 FF FF FF FF C4 08 FF FF FF FF FF
          0x30: FF FF FF 81 FF FF FF FF 03 FF 04 FF C2 8B 4A 4D
          0x40: 58 30 37 33 34 4C 32 45 57 C3 06 00 07 B3 5B 74
          0x50: D0 43 00 30 C5 08 FF FF FF FF FF FF FF FF 41 00
          0x60: 01 01 02 FF FF FF FF FF FF FF FF FF FF FF FF FF
          0x70: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
Slot 0:
        C3725 Mother board 2FE(TX)-3W Port adapter, 2 ports
        Port adapter is analyzed
        Port adapter insertion time unknown
        EEPROM contents at hardware discovery:
        PCB Serial Number        : XXXXXXXXXXX
        Processor type           : 61
        Top Assy. Part Number    : 800-16147-02
        Board Revision           : C0
        Fab Part Number          : 28-4226-06
        Deviation Number         : 65535-65535
        Manufacturing Test Data  : FF FF FF FF FF FF FF FF
        RMA Number               : 255-255-255-255
        RMA Test History         : FF
        RMA History              : FF
        Chassis Serial Number    : XXXXXXXXXXX
        Chassis MAC Address      : xxxx.b35b.74d0
        MAC Address block size   : 48
        Field Diagnostics Data   : FF FF FF FF FF FF FF FF
        Hardware Revision        : 0.1
        Number of Slots          : 2
        EEPROM format version 4
        EEPROM contents (hex):
          0x00: 04 FF C1 8B 4A 41 45 30 37 33 31 30 36 36 55 09
          0x10: 61 40 02 59 C0 46 03 20 00 3F 13 02 42 43 30 85
          0x20: 1C 10 82 06 80 FF FF FF FF C4 08 FF FF FF FF FF
          0x30: FF FF FF 81 FF FF FF FF 03 FF 04 FF C2 8B 4A 4D
          0x40: 58 30 37 33 34 4C 32 45 57 C3 06 00 07 B3 5B 74
          0x50: D0 43 00 30 C5 08 FF FF FF FF FF FF FF FF 41 00
          0x60: 01 01 02 FF FF FF FF FF FF FF FF FF FF FF FF FF
          0x70: FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF

Slot 1:
        CT1 (CSU) Port adapter, 1 port
        Port adapter is analyzed
        Port adapter insertion time unknown
        EEPROM contents at hardware discovery:
        Hardware revision 1.1           Board revision A0
        Serial number     30978633      Part number    800-01228-05
        FRU Part Number:  NM-1CT1-CSU=

        Test history      0x0           RMA number     00-00-00
        EEPROM format version 1
        EEPROM contents (hex):
          0x00: 01 26 01 01 01 D8 B2 49 50 04 CC 05 00 00 00 00
          0x10: 50 00 00 00 03 08 01 00 FF FF FF FF FF FF FF FF

Slot 2:
        Digital Modems Port adapter, 24 ports
        Port adapter is analyzed
        Port adapter insertion time unknown
        EEPROM contents at hardware discovery:
        Hardware revision 0.2           Board revision B1
        Serial number     30961630      Part number    800-02316-05
        FRU Part Number:  NM-30DM=

        Test history      0x0           RMA number     00-00-00
        EEPROM format version 1
        EEPROM contents (hex):
          0x00: 01 67 00 02 01 D8 6F DE 50 09 0C 05 00 00 00 00
          0x10: 59 00 00 00 03 08 11 00 FF FF FF FF FF FF FF FF
Dragon0x40Asked:
Who is Participating?
 
memo_tntCommented:
Hi

this command should give you the following results
#sh environment all

 Main Power Supply is AC

 Fan 1 OK
 Fan 2 OK
 Fan 3 OK

 System Temperature: 29 Celsius (normal)

 Environmental information last updated 00:00:15 ago


has a look at the following troubleshooting from CISCO regarding Fan Failure  ::

%CI-3-BLOWER: main fan failure
%CI-3-BLOWER: #1 fan failure  

The above message is printed when one of the cooling fans has failed. This could be caused by the following possibilities:  
A dirty fan or filterYou can determine this by physically looking at the fan. If it is dirty, pull out the fans and clean them using an air compressor or vacuum cleaner. You can pull out the fans without powering down the router.  
 Caution: Do not try to stop the fan from spinning by using your hand or an object; this could be dangerous for you and could damage the fan.  
Note: If it has been found that the fault lies with a fan assembly and the router is essential for network production, the router can run without one fan assembly for a few hours.
 
A bad or mis-seated fan assemblyIf the filter is clean, there is a good possibility that the fan has gone bad. Check whether the fan is turning; if not, try reseating the fan. This can be done without powering down the router.
 
A failed CI cardIf the above have been checked and the error message continues, the CI card could have failed. Open a case with the Technical Assistance Center (TAC) to have the card replaced.


moreover, if you are using an cooling system in your server room, then keep the cabinet open from its right and left sides .. until you fix your fan problem..

BR


0
 
Dragon0x40Author Commented:
thanks memo tnt

I will try your suggestions.

My show environment all is a little different though.

>sh env all
Power Supply:

        Redundant Power System is not present.


Board Temperature:

        normal.


Fan status:

        Warning - low fan rpm condition detected.
0
 
memo_tntCommented:
hi
try use this command from the enable mode..

BR
0
Ultimate Tool Kit for Technology Solution Provider

Broken down into practical pointers and step-by-step instructions, the IT Service Excellence Tool Kit delivers expert advice for technology solution providers. Get your free copy now.

 
Dragon0x40Author Commented:
I cannot access the router right now and I cannot find that command BR on the Internet.

All I can find is break, bridge and broadcast?

What does the command BR do?
0
 
memo_tntCommented:

sorry for the inconvenience
BR = Best Regards




0
 
Dragon0x40Author Commented:
Oooooh,

Don't I feel foolish!?
0
 
Dragon0x40Author Commented:
If you look at my original post it seems to be the same from either user exec or enable mode.

>#sh environment all
Power Supply:
Redundant Power System is not present.
Board Temperature:
normal.
Fan status:
Warning - low fan rpm condition detected.
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.