IFD244, IFD258 · Edition 06.23
EN-9
0 9
?
The display blinks and indicates 09?
!
The actuation of the input for the ϑ signal (termi-
nal3) is faulty.
!
The ϑ signal has been activated too often during
the safety time on start-upt
SA
. The unit start-up
was stopped 4 consecutive times during the
safety time.
• Remedy cause.
➔ ϑ signal minimum ON time (terminal3):
IFD..-3: 8s
IFD..-5: 10s
IFD..-10: 15s
The times must be at least this long, otherwise
the automatic burner control unit cannot monitor
the burner.
1 0
?
The display blinks and indicates 10.
!
Actuation of the remote reset input is faulty.
!
Too many remote resets. More than 5resets
have been conducted within the last 15minutes,
either automatically or manually–
!
Fault caused by another previous fault which is
signalled because the actual cause has not been
remedied, for example.
• Pay attention to previous fault messages.
• Remedy cause.
➔ The cause will not be remedied by performing a
reset every time a fault lock-out occurs.
• Check whether remote reset complies with
standards (EN746 allows resetting only under
supervision) and correct if necessary.
➔ The IFD may only be reset manually under
supervision.
• Press the Reset/Information button on the IFD.
2 8
?
The display blinks and indicates 28?
!
An internal device error occurred.
• Remove the IFD and return it to the manufac-
turer.
2 9
?
The display blinks and indicates 29?
!
An internal device error occurred.
• Reset the unit.
3 1
?
The display blinks and indicates 31?
!
Abnormal data change in the factory default
parameter settings of the IFD.
• Establish the cause of the fault to avoid repeat
faults.
• Ensure that the cables have been installed
properly– see page 4 (6 Cable installa-
tion).
• Establish the cause of the fault to avoid repeat
faults.
3 2
?
The display blinks and indicates 32?
!
Supply voltage too low.
• Operate the IFD in the specified mains voltage
range (mains voltage +10/-15%, 50/60Hz).
!
An internal device error occurred.
• Remove the unit and return it to the manufac-
turer for inspection.
3 3
?
The display blinks and indicates 33?
!
Faulty parameterization.
!
An internal device error occurred.
• Remove the unit and return it to the manufac-
turer for inspection.
5 2
?
The display blinks and indicates 52?
!
The IFD is being permanently reset.
IFD244:
!
Apply voltage to terminal 6 only for reset, approx.
1second– see page 4 (7 Wiring).
IFD258:
• Apply voltage to terminal 4 only for reset,
approx. 1second– see page 4 (7 Wiring).
5 3
?
The display blinks and indicates 53?
!
A start-up has been initiated during the cycle
lock.
• Adjust the timing cycle to the safety time on
start-up and to the ignition device.