06/2014 - Art. Nr. 4200 1057 7300
61
en
en
Technical assistance
Potential setbacks
Symbol
Anomaly
Cause
Solution
No heat request.
Thermostat incorrectly
adjusted or defective.
Adjust or replace the thermostats.
After switching the burner off through
the thermostat, it does not restart.
No anomaly visualised on the control
and safety programmer.
Voltage drop or shortage.
Control programmer
anomaly.
Verify the root of the voltage drop or shortage.
Replace the control programmer.
During the start-up phase, the burner
starts then switches off, and the
block indicator light turns on.
The control programmer
was intentionally blocked. Unblock the control programmer again.
The burner switches on then
switches off after pre-ventilation.
Stray light during the pre-
ventilation or pre-ignition
phases.
Check the ignition sparks, adjust/replace the elec-
trodes, check/replace the light oil solenoid valve.
The burner switches on then
switches off after the solenoid valve
opens.
No flame at the end of the
safety time.
Check the level of light oil in the tank.
If necessary, fill the tank.
Open the valves.
Check the oil pressure and operation of the
pump, joint, filter and electromagnetic valve.
Check the ignition circuit and adjust the electro-
des. Clean/replace the electrodes.
Clean/replace the flame detector.
If necessary, replace the following components:
ignition electrodes/ignition cable/ignition transfor-
mer, nozzle/pump/solenoid valve/control and
safety programmer.
The flame switches off while the plant
is functioning.
The flame switches off
when the plant is functio-
ning.
Anomaly causes and their removal
In case of anomalies, the following
essential prerequisites for the plant to
function properly must be checked:
1. Is the appliance powered?
2. Is there any light oil in the tank?
3. Are the stop valves all open?
4. Are the adjustment and safety
devices—e.g. boiler thermostat, safety
device in case of water shortages, limit
switches, etc.—all set?
If the anomaly persists even after the
above-mentioned points have been
checked, refer to the following table.
The safety components must not be
repaired, but replaced with components
bearing the same item code.
Exclusively use the manufacturer's
original spare parts.
NB: After each intervention, check
the following:
- The combustion values in operating
conditions (boiler room door closed,
cover mounted, etc.).
- Record the combustion values in the
heating plant booklet.
TEH display: the interface must be
used by personnel who effects the
service so that they can consult the
burner anomalies.
