Hi All,

I have changed the password for farm account after th CA and all sharepoint applictions are not working.

Could you please help me on this..

very urgent.

Thanks,

You have to follow a particular method for the farm account:

http://blogs.msdn.com/b/charliechirapuntu/archive/2013/01/18/10385512.aspx

execute this commands 

On the server that hosts the Central Administration website, type the following line at the command prompt, and then press Enter:

stsadm -o updatefarmcredentials -userlogin DomainName\UserName -password NewPassword

On all other servers in the server farm, type the following line at the command prompt, and then press Enter:

stsadm -o updatefarmcredentials -userlogin DomainName\UserName -password NewPassword -local

execute an iisreset

Hello,

Reset the password of Farm account first in Active Directory(AD). 

Please try to execute below power shell on the server which have central Admin.

$securepassword = convertto-securestring "YourNewPassword" -asplaintext force 
$acc = Get-SPManagedAccount -Identity "Account-Name"
Set-SPManagedAccount -Identity $acc ExistingPassword $securepassword -UseExistingPassword

If you get error in executing above power shell then

First check :-
timer job definitions, if there is any instance of SPAdminAppPoolCredentialDeploymentJobDefinition job. If this entry exists, delete this entry. 
Second check :-
Go To Services, Stop SharePoint 2010 Timer Service and update its credentials. Then re-start SPTimer service.

Again execute the above power shell script.

Thanks,

• Edited by Ratnesh 2927 1 hour 54 minutes ago

Hello,

Reset the password of Farm account first in Active Directory(AD). 

Please try to execute below power shell on the server which have central Admin.

$securepassword = convertto-securestring "YourNewPassword" -asplaintext force 
$acc = Get-SPManagedAccount -Identity "Account-Name"
Set-SPManagedAccount -Identity $acc ExistingPassword $securepassword -UseExistingPassword

If you get error in executing above power shell then

First check :-
timer job definitions, if there is any instance of SPAdminAppPoolCredentialDeploymentJobDefinition job. If this entry exists, delete this entry. 
Second check :-
Go To Services, Stop SharePoint 2010 Timer Service and update its credentials. Then re-start SPTimer service.

Again execute the above power shell script.

Thanks,

• Edited by Ratnesh 2927 2 hours 1 minutes ago