Mfi0 temp showing really hot!!!? possible resolution
So I recently noticed my pfsense showing that mfi0 had a temp of something like 15551c and I am sure that I am not inside the sun! That being said, I simply got into a terminal via ssh and ran the mfiutil command: mfiutil show patrol and poof it disappeared.
So if you are not under the surface of the sun and are getting mfi readings around that temp, try that command and tell me if it works.