elco Firebird FB 2 K LN, Instructions Manual

Page: 56 / 64

TROUBLESHOOTING
56/64
EN
7 .3 Troubleshooting diagram
Yes
Yes
Yes
Yes
Yes
Yes Yes
Yes
No
No
No
No
No
No No
No
Dirty
Cleaned
Boiler control
supplied with
heat demand
Lock out
after 20 sec
pre-purge
Check pump
solenoid
functionality
Check flame
sensor
functionality
**
Is there a
false flame
signal
Replace
pump
solenoid
Replace
flame sensor
Burner
motor
runs
Check green
LED lights
Check boiler
control
Motor
seized
Pump
blocked
Replace
motor
capacitor
Replace
control
box
Clean filter
Replace
motor
Check
pump filter
Remove false
flame causes
Unblock/Replace
pump
Yes
Yes
Check pressure loss
or complete system
( fuel)
Yes Yes
Yes Yes Yes
Yes Yes
Yes
Yes
No No No No
No
No
No No
No
No
No
Why is
broken?
Ignition
spark
functionality
Check
pump
pressure
Nozzle
atomising
full
Combustion
air set
correct
Combustion
head set
correct
Recycle?
Adjust
parameters
Adjust
parameters
Replace nozzle
Check main
fuel filter
Set or
replace
electrodes
Check
ignition
electrodes
Replace ignitor
Yes
Yes
*
*
Replace
drive
coupling
Clean filter
or replace
pump
Replace
solenoid
Replace
pump
Check pump
filter
Check
the drive
coupling
Check
solenoid
Flame sensor
work well?
Fig. 56