
66
Fault code
on the dis-
play
System characteris-
tics
Cause
Measures
F2
Burner in a fault
state
The temperature
limiter has respon-
ded
Check the heating system
fill level. Check the circu-
lation pump. Vent the sys-
tem. Check the tempera-
ture limiter and connect-
ing cables.
Press "
E
".
F3
Burner in a fault
state
Flame signal is
already present at
burner start
Check ignition electrodes,
electrode gaps and con-
necting cables.
Press "
E
".
F4
Burner in a fault
state
The flame is not
established at the
end of the safety
time
Check oil supply, ignition
electrodes, electrode
gaps and connecting
cables,
check nozzle, check sole-
noid valve coil.
Correct all settings, if
required, clean all conta-
minated parts and replace
faulty components.
Press "
E
".
F5
Burner in a fault
state
The air pressure
switch does not
respond.
Check air pressure switch
and replace if necessary.
Press "
E
".
F6
Burner in a fault
state
No control/feed-
back of/from fuel
valve BV 2
Replace solenoid valve
BV 2.
Press "
E
".
F8
Burner in a fault
state
Fuel valve BV 1
closes late
Check nozzle; vent oil
supply line; check sole-
noid valve.
Press "
E
".
F9
Burner in a fault
state
Fan speed too low
during the burner
start
Check the fan, check the
fan connecting cables,
check the fan power sup-
ply.
Press "
E
".
Troubleshooting
Fault codes
(cont.)
5692 774 GB
Содержание Vitoladens 300-C
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