129
Dis-
played
fault
code
Const.
Weath.-
comp.
System char-
acteristics
Cause
Measures
EA
X
X
Burner in a fault
state
Ionisation
current out-
side permissi-
ble range dur-
ing calibration
(excessive
deviation
from previous
level)
Check flue system;
remedy flue gas re-
circulation if re-
quired.
In open flue opera-
tion, prevent high
incidence of dust in
the combustion
air.
Press reset button
R
.
Following several
unsuccessful reset
attempts, replace
the coding card
and press reset
button
R
.
Eb
X
X
Burner in a fault
state
Repeated
flame loss
during cali-
bration
Check gap be-
tween ionisation
electrode and
burner gauze as-
sembly (see
page 46).
Check allocation of
gas type (see
page 36).
Check flue system;
remedy flue gas re-
circulation if re-
quired.
Press reset button
R
.
EC
X
X
Burner in a fault
state
Parameter
fault during
calibration
Press reset button
R
or
Replace coding
card and then
press reset button
R
.
Troubleshooting
Fault codes
(cont.)
5585 174 GB
Service