If you think your ssh is dead or blocked out in server firewall. Then you can start a stand alone ssh from whm which will listen on port 22 .
http://your_server_ip:2086/scripts2/doautofixer?autofix=safesshrestart
Now you can login to ssh with port 22 and fix your original ssh issue. Also if you have csf firewall installed in this server , please turn off it from whm
