oc get componentstatus - Unhealthy

Issue

The OpenShift Enterprise environment is operation properly, however the status command shows Unhealthy states for components:
Openshift Enterprise 3.1

# oc get componentstatus
NAME                 STATUS      MESSAGE   ERROR
controller-manager   Unhealthy             Get http://127.0.0.1:10252/healthz: dial tcp 127.0.0.1:10252: connection refused
scheduler            Unhealthy             Get http://127.0.0.1:10251/healthz: dial tcp 127.0.0.1:10251: connection refused
etcd-0               Unhealthy             Get http://master.demo.lan:4001/health: malformed HTTP response "\x15\x03\x01\x00\x02\x02"

Openshift Container Platform 3.2 and later

[root@master1 ~]# oc get componentstatus
NAME                 STATUS      MESSAGE                                                                                           ERROR
scheduler            Unhealthy   Get http://127.0.0.1:10251/healthz: dial tcp 127.0.0.1:10251: getsockopt: connection refused      
controller-manager   Unhealthy   Get http://127.0.0.1:10252/healthz: dial tcp 127.0.0.1:10252: getsockopt: connection refused      
etcd-2               Unhealthy   Get https://<etcd_server3>:2379/health: remote error: tls: bad certificate   
etcd-0               Unhealthy   Get https://<etcd_server1>:2379/health: remote error: tls: bad certificate   
etcd-1               Unhealthy   Get https://<etcd_server2>:2379/health: remote error: tls: bad certificate   

is this expected and how can it be fixed?