Page 33 of 51
10. LOCK OUT
As the burner control goes into Lock Out, the display will show a code (see also 8.3 page 27) which
corresponds with the cause of the error; the table below shows the errors.
Only by pressing the “Reset-button” the boiler can be reactivated.
Meaning Code
on
Display
Possible cause of the Lock Out
See fault numbers Page 34 to 37
Short Circuit in Ionisation Circuit
F0
18; 35; 61
Limit Temperature
F2
4;5;21;23;24;29;30;42;46
Wrong Fan speed
F4
7;8;9;13;19;39;40;41
No Flame after 5 Ignition attempts
F5
10;11;16;18;22;25;35;
Flame lost (4 times) during running
F6
10;12;16;22;25;26;32;44
Flow sensor shorted or interrupted
E0
4;5;23;29;46
E1
3;4;21;24;25;38;43;55;
Return Sensor short/interrupted
E2
4;5;23;29;46
E4
3;4;21;24;25;38;43;55;
E5 1;2;3;4;21;24;30;43;46;51;55;63;
New Parameters programmed correct
PP
Press Re Set Button
Parameters incorrectly programmeerd
PE
Revise programme
Burner Control has malfunction
nc
Switch power off then on
No communication (in cascade mode)
nc,
Check cables to all boilers and Bus
address numbers
Burner defect
H1
Press reset button
There are several faults or complaints that the display is unable to convey.
Some of these faults or complaints are:
Complaint
Cause of the fault
(see page 34 to 37)
a.
The building is not warming up but the boiler is working
45;53;54
b.
Noisy ignition
16;35
c.
Burner of the boiler is continuously on, but the CH water is not warming
up
45
d.
Room thermostat demanding heat, but boiler is not firing
1;42;52
e.
Burner of the boiler is continuously on; building is getting too hot
2
f.
Boiler is very noisy during CH operation
29;46;66
g.
Tops of radiators are insufficiently hot
55
h.
ON DHW, the water is cold
24;56
i.
Temperature of the DHW is far too hot
51;57
j.
ON DHW, the water remains below 60°C
51;58
k.
ON DHW, the boiler is very noisy
23;59
l.
Fault after replacement of the burner control
60
Table 5; Other faults
