56
Fault display
The fault display is activated automati-
cally if the burner control unit switches to
a fault state. The most recent fault will
then be displayed. The fault LED is also
illuminated in the case of a non-lockout
fault or flashes together with the fault
code in the case of a lockout fault.
Status Service
A
Fault code of the most recent fault
(see table from page 57)
1.
Correct the fault. For fault codes and
measures, see from page 57. Carry
out measures in the indicated order.
2.
Press reset button
R
for longer than
0.5 s.
The operating display is shown again
and the burner control unit is reset.
Fault memory
The ten most recent faults are saved and
may be called up. The order of scans
ranges from the most recent to the ear-
lier fault codes. The fault memory display
is terminated automatically if no key is
pressed within 20 s.
Note
If the burner does not start up due to a
non-lockout fault without displaying a
fault code, the fault memory may be able
to indicate the cause.
Note
After the high limit safety cut-out has
been triggered, check the plastic flue gas
collector for damage and possible
leaks.
To call up the fault codes, press the fol-
lowing keys:
1. S
longer than 2 s,
" "
flashes.
2.
until "4" is shown under Serv-
ice.
3. S
"4" will be displayed under Sta-
tus.
Troubleshooting
Fault display
5794 780 GB
Summary of Contents for 7502860
Page 95: ...95 5794 780 GB ...
