Viessmann Vitodens 200-W Installation Instructions Manual page 129

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