EN
7.1
Troubleshooting
Heat request
Yes
(within 400 s)
No
Check that
the green
Yes
LED is on
No
Check the
boiler control
unit
Lock-out after
20 sec pre-
Yes
ventilation
Check the solenoid
*
Yes
valve's efficiency
Replace
the pump
solenoid valve
Yes
Electrode
Yes
discharge
efficiency
No
Check the
No
electrode spark
Yes
Replace the
transformer
Heater
The motor
consent
Yes
starts
No
No
Check that
the green
LED is on
Heater
No
damaged
Yes
Check the
boiler control
unit
Replace the
heater
Yes
No
Check the flame
Yes
sensor's efficiency
Does the flame
No
sensor work properly?
Replace the
flame sensor
Replace the
Clean the filter
pump joint
or replace the
Why is it
No
broken?
Check the
Check the
Yes
pump joint
pump filter
No
Check
Nozzle
Yes
the pump
spray
pressure
Replace the
Fix or replace
nozzle
the electrodes
No
Check the
main filter
Yes
Motor
Yes
No
seized
Yes
Replace the
motor
Release/replace
**
There's a
Yes
false flame
No
Remove the
causes of the
parasite flame
Replace the
solenoid valve
pump
No
Check the
Yes
solenoid valve
Combustion
Yes
air setting
correct
No
No
Adjust the
setting
*
Pump
Replace the
No
seized
motor capacitor
Yes
Clean the
Check the
Dirty
pump filter
Clean
the pump
Replace the control
No
and command
signal
equipment
Yes
No
Replace the
Yes
pump
Check the pressure loss or the
complete system (boiler + fuel)
No
Combustion
Yes
head setting
correct
No
Adjust the
setting
Yes
Does it
recycle?
filter
Yes
Fig. 55
63