23
3 System Operation
627 General safety chain missing
700 Pre-ventilating signal present, without signal on terminal 2. G2,G5
701 Flame signal present, without signal on terminal 2. G2
702 Flame signal appears during pre-ventilating. G2,G5
703 Flame signal goes out even though signal on terminal 2 is still present. G2
711 Illegal operating mode change. H6
712
713 Incorrect signal combination in operating mode AU H6
714 Incorrect signal combination in operating mode BE H6
715 Incorrect signal combination in operating mode VO H6
716 Incorrect signal combination in operating mode ZP H6
717 Incorrect signal combination in operating mode ZU H6
718
719 Fuel valves open too long without flame H6
720 Ignition transformer switched on too long H6
721 Ignition valve open too long H6
722 Fuel valves open in maintenance mode H6
723 Ignition process taking too long H6
724 Gas valves open when burning oil H6
725 Oil valves open when burning gas H6
726 Main gas 2 open without main gas 1 H6
727 Main gas 1 illegally open H6
728 Main gas valves and ignition valve open too long H6
729 Ignition process taking too long (without pilot burner) H6
730 Maintenance mode without pilot burner H6
731 Ignition valve open without pilot burner H6
732 Incorrect signal combination during operation H6
733 Incorrect signal combination after operation H6
734 Pre-ventilating time not complied with H6, H8
735 Fuel safety chain missing H6
736 Leak check: both gas valves open H6
737 Leak check: main gas 2 delayed too long when switching off H6
738 Leak check: main gas 2 missing H6
739 Leak check: main gas 2 open too long H6
740 Leak check: main gas 1 leaking H6
741 Leak check: main gas 1 open too long H6
742 Leak check: main gas 2 leaking H6
743 Flame monitoring: flame after-burn too long H6
744 Flame monitoring: flame on again H6
745 Program check time exceeded
746 Solenoid valve switch-off faulty H6
747 Leak check: ventilating into boiler not allowed H6
Aids FMS Aids ETA
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