Fault Code - Joannes EPOCA 25-29 NS Installation And Maintenance Manual

FAULT CODE (read-only display)
The boiler control box is equipped with a microprocessor that memorises and signals any faults or shutdowns.
The fault type is indicated by a code.
The meaning of each code is given in the table below:
1 st Figure 2
0
1
2
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
5
5
5
9
9
9
9
nd Figure
00
Flame detection circuit fault
01
24 V short circuit
02
No detection, no flame on burner
03
Board fault
04
Internal board fault (e.g. power failure)
05
Board fault
06
Board fault
07
Board fault
10
Board fault
11
Board fault
13
Board fault
14
Board fault
15
Board fault
16
Board fault
17
Board fault
24
NTC1/NTC2 connection switched over
26
Minimum gas pressure (at pressure switch)
30 Difference ∆T between T1 and T2 exceeded (>35 °C)
31
NTC1 short circuit
32
NTC2 short circuit
36
NTC1 open
37
NTC2 open
41
Board fault
42
Board fault
44
Board fault
60
Board fault
08
Air pressure switch failure
28
Fan not working, no tachometer signal
29
Fan continues running, erroneous tachometer signal
12
No-water pressure switch
18
TST tripped (>98°C)
19
Return temperature T2 too high (>88°C)
25
Temperature T1 varies too quickly (T1 = delivery temperature)
Fault
68