Fireye burner control troubleshooting

The Fireye NX6300 is a single-fuel integrated burner control in the Nexus range, combining flame safeguard and fuel/air positioning. Its fault numbers carry a letter prefix that tells you whether the fault is still present, has cleared, or is a limit, and it keeps a long event history, so the history is usually more useful than the single fault on screen.

The Fireye NX6100 is a Nexus integrated controller that combines flame safeguard, burner sequencing and parallel fuel/air positioning. It shares the Nexus fault numbering with the NX6300 but supports more drives and inputs, and adds faults for a second air switch, valve proof of closure and gas pressure supervision.