Viessmann VITOLADENS333-F Service Instructions Manual page 72

Troubleshooting
Fault codes
(cont.)
Fault code System character-
on the dis- istics
play
E5 Burner in a fault
state
E6 Burner in a fault
state
F0 Burner blocked.
F1 Burner in a fault
state
F2 Burner in a fault
state
F3 Burner in a fault
state
F4 Burner in a fault
state
72
Cause Measures
Internal fault Press "E RESET".
Replace the control unit
if the burner will not re-
start.
The oil preheater Check oil pre-heater and
does not respond supply line and replace
inside the toler- if necessary.
ated time Press "E RESET".
Internal fault Replace the control unit.
Flue gas tem- Check the heating sys-
perature limiter tem fill level. Vent the
has responded system.
Press "E RESET" after
the flue gas system has
cooled down.
The temperature Check the heating sys-
limiter has re- tem fill level. Check the
sponded circulation pump. Vent
the system. Check the
temperature limiter and
connecting cables.
Press "E RESET".
Flame signal is al- Check ignition electro-
ready present at des, electrode gaps and
burner start connecting lines.
Press "E RESET".
The flame is not Check oil supply, igni-
established at the tion electrodes, elec-
end of the safety trode gaps and
time connecting lines,
check nozzle, check so-
lenoid valve coil.
Correct all settings, if re-
quired; clean all con-
taminated parts and
replace faulty compo-
nents.
Press "E RESET".