Viessmann CT3U, Инструкция по эксплуатации

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34
Fault code *1 Shown on
display System characteristics Cause of fault Measure
F A7 F A7 No flame reported during
safety time; ionisation
flame monitor reports no
flame signal.
I Danger
Plug-in terminals on
the burner control
unit are live.
Check connections
"L 1", "N" and earth
conductor.
Connections "L 1" and
"N" interchanged at the
power supply terminal of
the control unit or burner
control unit. Check core assignment
and alter if required.
F A7 F A7 No flame reported during
safety time; ionisation
flame monitor reports no
flame signal. Combustion characteris-
tics not ideal Adjust burner setting (see
page 12 onwards)
F A8 F A8 Flame tears off during op-
eration Incorrect gas type selec-
ted Adjust gas type setting
(see page 10)
F A8 F A8 Flame tears off during op-
eration Burner gauze assembly
faulty Check burner gauze as-
sembly; replace if dam-
aged.
F A8 F A8 Flame tears off during op-
eration Incorrect parameter
memory stick inserted Replace and enable pa-
rameter memory stick.
F A8 F A8 Flame tears off during op-
eration Combustion characteris-
tics not ideal Adjust burner setting (see
page 12 onwards)
F A9 F A9 Flame extinguishes dur-
ing stabilising time Incorrect gas type Set correct gas type.
F A9 F A9 Flame extinguishes dur-
ing stabilising time Burner gauze assembly
faulty Check burner gauze as-
sembly; replace if dam-
aged.
F A9 F A9 Flame extinguishes dur-
ing stabilising time Incorrect parameter
memory stick inserted Replace and enable pa-
rameter memory stick.
F A9 F A9 Flame extinguishes dur-
ing stabilising time Combustion characteris-
tics not ideal Adjust burner setting.
F 04 F 04 Burner control unit lock-
out Burner control unit has
been reset more than 5
times in the last 15 min. Wait or carry out an ex-
tended reset, i. e. hold
down the reset button for
approx. 10 s until the fault
display begins to flash,
then immediately release
the reset button.
F 11 None Burner switches off; dis-
play only in fault memory. Low voltage detected Check power supply
F 12 None Burner switches off; dis-
play only in fault memory. Mains failure, voltage
failure detected Check power supply
F 13 F 13 Burner control unit in a
fault state Safety chain is live Check safety chain (strap-
ping plug
fJ
)
F 16 None Burner control unit in a
fault state EMC fault Have the system tested
for EMC interference
*1 All fault codes are saved to the fault memory and the last 10 can be called up.
Troubleshooting
Diagnosis
(cont.)
5783 337 GB
Diagnosis