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TRD
EN67
Fault
P301=0
P301=2
code
P328>0
P328>0
608
1 *1)
1 *1)
609
1 *1)
1 *1)
Optional
610
3 *1)
*1)
611
Optional
613
0
617
1
624
Optional
711
0
713
0
714
0
715
0
716
0
717
0
719
0
720
0
721
0
722
0
723
0
724
0
725
0
727
0
728
0
729
0
730
0
731
0
732
0
734
0
739
0
740
0
741
0
742
0
743
0
745
0
746
0
747
0
759
0
763
0
764
1
800
0
801
0
802
1
803
0
804
0
805
0
Faults - Probable causes - Solutions
Description
Invalid drop of the boiler safety interlock chain
Invalid drop of the gas safety interlock chain
Invalid drop of the oil safety interlock chain
3
Gas pressure too low
0
Air pressure signal is missing
1
Flame signal extinguishes during operation
3
Oil pressure too low
0
Invalid change of the operation mode
0
Invalid signal combination in operating mode BURNER OFF
0
Invalid signal combination in operating mode BURNER READY
0
Invalid signal combination in operating mode PRE-PURGE
0
Invalid signal combination in operating mode IGNITION POSITION
0
Invalid signal combination in operating mode IGNITION
0
Fuel valves are open for too long without a flame
0
Ignition transformer activated too long
0
Ignition valve openes for too long
0
Fuel valves open in maintenance mode
0
Ignition process needs too much time
0
Gas valve open with fuel oil
0
Oil valves are open while gas is selected
0
Main gas 1 opens unexpectedly
0
All three gas valves open for too long
0
Ignition process lasts for too long (without pilot burner)
0
Maintenance mode without pilot burner
0
Ignition valve opens without pilot burner
0
Invalid signal combination at input terminals during operation
0
Pre-ventilation period not respected
0
Leakage test: main gas valve 2 opens for too long
0
Leakage test: main gas valve 1 leaky
0
Leakage test: main gas valve 1 opens for too long
0
Leakage test: main gas valve 2 leaky
0
Flame monitoring: flame burns for too long after shutdown
0
Program monitoring time exceeded
0
Solenoid valve cannot be switched off
0
Leakage test: Venting into the burner is not allowed
0
BT300 leaves SETTING mode automatically after 24 hours
Different curve selection on main processor and watchdog proces-
0
sor
1
CO-controller - internal curve set failure
0
Parameter defective
Channel control mode is inconsistent between main processor and
0
watchdog processor (fatal error, no automatic restart possible)
Integration of a channel into the fuel/air ratio control takes too long
1
(only one automatic restart possible)
0
Channel is out of 1
Channel mode of the fuel/air ratio control does not match to the ac-
0
tivation type
Directly controlled channel runs to an invalid position, i.e. a channel
0
that is not deactivated or controlled by fuel/air ratio control
st
monitoring band for too long
45
GB
D1
D2
Curve set
Parameter
No.
Channel
Channel
Channel
Channel
Channel +
set point
position
20171664
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