61
TECHNICAL ASSISTANCE SERVICE
ENGLISH
TROUBLESHOOTING
Fault
Possible cause
LED colour code
Possible solution
Burner does not
ignite when heat
is requested
No electrical power
LED off
Check for voltage at L, N and in
the plug
Check the condition of the fuses
Check that the safety thermostat
has not tripped
The flame detector is
reading extraneous light
Green + Red flashing
Eliminate the light source
The burner controller
connectors are not
properly plugged in
LED off
Make sure that all connectors are
properly connected
The short circuit connector
P is not connected
Green flashing
Replace as necessary
The burner
enters lockout
before or during
pre-ventilation
The flame detector is
reading extraneous light
Red flashing
Eliminate the light source
The burner per-
forms pre-ven-
tilation and
ignition correctly
but enters lock-
out after about 5
seconds
The flame detector is dirty
Red
Clean the flame detector
The flame detector is
faulty
Replace as necessary
The flame detaches or
fails
Check fuel oil pressure and flow
rate
Check the air flow rate
Change the nozzle
Check the solenoid valve coil
Check that flue gas recirculation
is properly adjusted.
The burner starts
only after late
ignition
The ignition electrodes are
incorrectly positioned
LED off
Adjust the ignition electrodes as
instructed in this manual
The air flow is too high
Adjust the air flow rate as
instructed in this manual
The nozzle is dirty or worn
Replace as necessary
