NX6100 troubleshooting answers
12 questions with answers cited from the manufacturer manuals.
- 0Fireye NX6100 F43: Gas pressure limit exceeded or sensor fault, what to check?
The Fireye NX6100 F43 fault indicates that the controller's internal gas pressure sensor has detected a pressure outside the set operating limits or the sensor itself is not responding. This fault can occur at any point …
- 0Fireye NX6100 F30: Gas valve 2 proof of closure fault at shutdown, what to check?
The Fireye NX6100 F30 fault indicates that the proof-of-closure (POC) signal from gas main valve 2 did not behave as expected. This means the controller couldn't confirm the valve was closed when it should be, or the sig…
- 0Fireye NX6100 F16: primary air pressure not proven, what to check?
The Fireye NX6100 controller's F16 fault indicates that the optional primary air pressure switch did not register air pressure when required, typically from status 07 onwards. This fault is distinct from F14, which relat…
- 0Fireye NX6100 F66 Flame Test Failed, subset 1: what to check?
The Fireye NX6100 F66 fault, "Flame Test Failed," means the controller's regular self-check of its flame input failed. This test ensures the flame input reads "no flame" when it should, using either a scanner shutter or …
- 0Fireye NX6100 F64 Profile Invalid before startup, what to check?
The Fireye NX6100 controller displays an F64 'Profile Invalid' fault when the selected fuel/air profile data no longer matches the burner configuration, preventing startup. This is a safety block that can occur after a s…
- 0Fireye NX6100 F42: Gas Valve Leak Test Failed, what to check?
The Fireye NX6100 controller's F42 fault indicates a problem with the gas safety shutoff valve leak test. This test runs during startup (Status 03-09) and checks for pressure changes between the gas valves. The fault mea…
- 0Fireye NX6100 F41 subset 4: boiler pressure limit exceeded, what to check?
The Fireye NX6100 F41 fault indicates either a boiler pressure/temperature sensor issue or that the boiler's measured value exceeded a safety limit. Subset 4 specifically points to a real over-pressure or over-temperatur…
- 0Fireye NX6100 F20 drive position fault during purge, what to check?
A Fireye NX6100 F20 fault indicates a drive position error, meaning a fuel or air drive is not at its expected position according to the commissioned profile. This can occur during startup (proving close or purge positio…
- 0Fireye NX6100 F15: Air pressure detected when off, what to check?
The Fireye NX6100 F15 fault indicates that the main combustion air pressure switch detected air pressure when it should not have. This can occur before the fan starts (Status 01) or if the switch registers air for more t…
- 0Fireye NX6100 F14 Status 07: main air pressure not proven, fan runs, what to check?
The Fireye NX6100 integrated burner controller reports an F14 fault when the main combustion air pressure switch fails to register air pressure at a required point in the sequence. Status 07 specifically indicates this o…
- 0Fireye NX6100 F11 False Flame after shutdown, what to check?
The Fireye NX6100 F11 False Flame fault indicates the controller detected a flame signal when no flame should be present, such as after shutdown or during purge. This is a safety lockout because the controller cannot dis…
- 0Fireye NX6100 F10 flame failure during pilot ignition, what to check?
An F10 flame failure on the Fireye NX6100 means the controller didn't detect a flame when expected. Since this occurs during pilot ignition and no spark or pilot flame is visible, the most likely cause is a problem with …