Carrier Infinity Fault Codes? I am receiving a instructive on my Infinity thermostat: "Alert, Critical Malfunction,...

I am receiving a instructive on my Infinity thermostat: "Alert, Critical Malfunction, etc." What does that mean and how do I go and get through the thermostat to find the fault code so I can fix it. Thanks so much for your comfort.
Whats going on near my contrivance?
Answers:    I think I enjoy found a website that can help you. They own many option for you. I do service on almost all heat and AC equipment but I personally havnt worked on these. Try(www,favret.com/pdf files/thermostat) It seem to be on page12of12
Fixing a metal bureau front door?
go to haulier website and look under your model number for help out. There are several series of the infinity line. Need numbers to be more assist. And carrier doesn't construct t-stats, they use someones Else's and put their name on them