System Operation
Messages / Faults
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An "H” before the fault code indicates that the main processor has
identified the cause of the defect. A preceding "Ü" indicates that the
monitoring processor has triggered the fault.
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An * next to the fault code means that the control unit will attempt
restarting after a few seconds.
A flashing fault LED signals that a repeat startup is about to take place.
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D/A converter defective
Curve data are defective! Curve set No.
at parameter No.:
Inadmissible configuration in the parameters
Different digital input signals on main and
monitoring processor
CRC-16 test has discovered a fault
RAM test detects fault
Different operating mode between main and
monitoring processor
The correction is outside its admissible range,
channel 1
The correction is outside its admissible range,
channel
The correction is outside its admissible range,
channel
The correction is outside its admissible range,
channel
The correction is outside its admissible range,
channel
The EEPROM is defective
Potentiometer defect, feedback varies too rapidly: channel
Potentiometer defect, feedback varies too rapidly: channel
** means that a repeat startup is attempted arbitrarily often. The time
can be set at the factory or the restart deactivated.
Fault code number
Aids
H / Ü
1
Ignition flame fails to start
H / Ü
2
Extraneous light fault
H / Ü
3
Flame fault during ignition sequence
H2
H / Ü
4 **
Flame fault during operation
H / Ü
5
Flame signal does not appear during 1st safety period
H2
H / Ü
6
Flame signal goes out during the stabilisation period
H2
H / Ü
7
Flame signal goes out during the 1st safety period
H2
H / Ü
8
Flame signal goes out during the 2nd safety period
H2
H / Ü
9
Flame signal does not appear during the safety period
H2
H / Ü 10
Flame signal goes out immediately after ignition
H2
H 102
Internal communication FIFO memory has overflowed
A7
H / Ü 103
Internal fault: EEPROM
A7,A9
H 104
A7
H / Ü 105 *
A7,A13,
A9
Ü 106
Unterschiedliche Parameter zwischen HP & UE,
A7,A14,
A9
H / Ü 107
A7,A12
H 108
A7,G8
H / Ü 110
A7,A11
H / Ü 111
A7
H / Ü 120 *
A24
Ü 121
F1
Ü 122
F1
2
Ü 123
F1
3
Ü 124
F1
4
Ü 125
F1
5
H / Ü 139
Integrierter Flammenwächter: Störung bei Selbsttest
H / Ü 140
A2,A7,
A12,A15
H / Ü 141
1
E13
H / Ü 142
2
E13
83
Fault codes