If incorrect credentials are used in '/root/.my.cnf' to connect to the MySQL server, chkservd will report the service as down, when it is in fact up.
The root user and password, as designated within MySQL should be used within this file:
# cat /root/.my.cnf
*Please be sure to use the root password designated within MySQL. If the credential needs to be reset, you may follow the steps provided in this article.