TCP reset issue - RST message

I have an issue with my F5. The ltm resets the connection between itself and the node. it sends an RST message periodically . I changed the idel time on TCP profile,but the issue still remained until I removed and disabled the health monitors on Node and Pool. the connection between Node and LTM has stabled since the health monitor has been removed. Do you know how can i have enabled health monitor and also prevent sending RST to reset the connection? We are using an application on our remote sites that talks to its servers via TCP port 5005. Thanks.