text: <s>[INST] PF 525 Displaying F099 Fault Code Summary: I have a PF 525 Showing F099 5.001 rev According to the documentation this is not possibleSee the image attached. I cannot find any documentation that references a PF525 showing this fault code anywhere. Please advise.. we use a 25-comm-e2p module with this unit. and S2 and 4 are the only IO. [/INST] It's reporting local weather - Fogg. You're going to have to call Rockwell Tech Support for this one - you're right. It's not a documented fault code. I looked hard through the knowledgebase. F099 by itself brings up nothing. The knowledgebase is performing to Rockwell standard, meaning using search terms +Powerflex +525 +Fault +Codes does not bring up useful results. Call Tech Support. When you get an answer back, would you please share it here? You've got my curiosity up and I'd love to know the answer. \\n </s>