Table of Contents
Advertisement
Fault codes
(cont.)
Display fault
System char-
code
acteristics
F1
Burner control
unit fault
F2
Burner control
unit fault
F3
Burner control
unit fault
F4
Burner control
unit fault
F5
Burner control
unit fault
Cause
Flue gas temperature lim-
iter has responded
The temperature limiter
has responded
Flame signal is already
present at burner start
The flame is not estab-
lished at the end of the
safety period
The air pressure switch
does not respond
Troubleshooting
Measures
Check the heating
system fill level.
Vent the system.
Press reset
"E"no sooner
than after 20 min-
utes.
Check the heating
system fill level.
Check the circula-
tion pump. Vent
the system.
Check the tem-
perature limiter
and connecting
cables.
Press "E".
Remove external
light ingress.
Press "E".
Check the oil sup-
ply,
check the flame
monitor,
check the nozzle,
check the sole-
noid valve coil.
Correct all set-
tings, if required,
clean all contami-
nated parts and
replace faulty
components.
Press "E".
Checking and re-
placing the air
pressure switch, if
required.
Press "E".
73
Advertisement
Table of Contents
