Opt 6 X troubleshooting answers

1 question with answers cited from the manufacturer manuals.

0
NX6300 F15: Air pressure detected when off
The Fireye NX6300 F15 fault indicates that combustion air pressure was detected when it should not have been. This can occur either before the fan starts (Status 01) or more than three minutes after the burner turns off …
Boilers & burners Fireye NX6300 F15 Opt 6 X InduQT, from 4 sources