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    Jandy JXI 400 High Limit Fault (already replaced limit switches)

    I have a Jandy Jxi 400n heater that is ~4 years old. I have had issues with a high limit fault since the end of last season. At the start of this season, we changed the limits and checked all of the flow and vents to confirm no obstructions. It seemed to work ok for awhile and then the fault...