E.C.A. Fortius Service Manual page 41

FAULT & FAILURE
Several checks are included to protect the boiler and its environment. In case of error condition, the
error code is displayed by 7 segment display (Table 26), and heat demands will be disabled.
Error conditions can be divided in 2 groups: lockout conditions and blocking conditions.
a) Lockout conditions, No flame, False flame, Over-temperature failure, APS open and APS
closed, can only be cleared by keeping the reset push-button for 2 secs., then main board and
display panel will be in stand-by mode. If the problem continues, call qualified service. While in
lockout conditions, LED L2 will turn on.
b) Blocking conditions, Circuit break in flue safety device (NTC), Short circuit in flue safety
device (NTC), Flue safety device (NTC) shuts system off because of flue gas leakage, Flow
temperature too high, Circuit break in CH flow sensor (NTC), Short circuit in CH flow sensor
(NTC), Short circuit in CH return sensor (NTC), Circuit break in DHW sensor (NTC), Short circuit
in DHW sensor (NTC), Short circuit in outside temperature sensor (NTC), Flame circuit error, Low
voltage in main board (CVBC), Water pressure error and Valve circuit error, will reset as soon as
the cause of the problem disappears. For example, when CH sensor is out of operating range,
blocking condition will be generated and keep the system off until the sensor is within operating
range again.
L1 L2 L3
ON OFF OFF
fig. 22e
Stand – by
7 segment
L7
display
88
OFF
L8 L9
OFF OFF
40