Hello, I am doing a service call on a Johnson controls FX40 Niagara AX system. They are having an issue with all the controllers going offline/online about every 10 seconds or so. I have traced all wiring and it looks intact, I have reset the FX-40 via power cycle. Could the FX40 be failing? Any tips would be appreciated.
source https://hvac-talk.com/vbb/threads/2235796-JCI-Facility-Explorer-FX-40-Devices-going-off-and-online?goto=newpost
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