Observation:

Fault codes will be shown on the display along with some basic guidance, this information will display on a loop until the fault code is cleared.
There may be up to 6 messages shown in any given cycle, for example:
"Overheat lockout" > "Fill System to 1.0 bar" > "Bleed radiators" > "Check radiator valves open" > "Reset Boiler" > "Contact Installer" in this example choose "Overheat lockout" from the fault codes below.
Select from the list below the fault code that corresponds with that displayed by the boiler.
OVERHEAT LOCKOUT
IGNITION LOCKOUT / FLUE OVERHEAT
NO WATER FLOW LOCKOUT
TOO MANY RESETS
FAULT 8
LOW WATER PRESSURE
FLAME LOSS
FAN FAULT
FLOW / RETURN REVERSED