How do you clear a health monitor?

I just added CU13 to my Exchange 2013 deployment. It overwrote the web.config for Instant Messaging.  That caused the Health Monitor "OWA.Protocol.Dep" to become unhealthy.

I have since repaired the web.config and verified that IM is working through OWA. 

I would like the health status to change but it hasn't since yesterday.  How do you make a monitor either test again to show healthy or clear it to show healthy? 

I can't really find anything that tells me this in days of searching on the internet.  So far I'm guessing clear event logs which sucks.

David Jenkins