Viessmann VITOPEND 200, Installation And Service Instructions For Contractors

Page: 86 / 132

Fault
code
on the
display Const. Weath.-
comp. System char-
acteristics Cause Measures
F0 X X Burner
blocked Internal fault Replace the con-
trol unit
F2 X X Burner in a
fault state The tem-
perature lim-
iter has
responded Check the heating
system fill level,
the circulation
pump, the tem-
perature limiter
and connecting
cables/leads; vent
the system; press
"
E RESET"
F3 X X Burner in a
fault state Flame signal
is already
present at
burner start Check the ionisa-
tion electrode and
connecting cable;
press
"
E RESET"
F4 X X Burner in a
fault state No flame sig-
nal. Check the ionisa-
tion electrode,
ignition, ignition
module, ignition
electrodes, con-
necting cable, gas
pressure and gas
train; test the ioni-
sation current;
press
"
E RESET"
F5 X X Burner control
unit fault The air pres-
sure switch
is closed
during the
burner start
or does not
close when
the ignition
load speed
has been
reached Check the ba-
lanced flue sys-
tem, the air
pressure switch
hoses, the air
pressure switch
and connecting
leads
Fault codes
(cont.)
86
Troubleshooting
5592
817
GB