43
Bentone
Cause of fault
Action
Burner trips after safety time limit despite flame propagation:
No ionisation current or UV cell incorrectly positioned.
Adjust ionisation electrode and UV cell
Check cables and connectors.
Burner control monitor faulty.
Replace burner control.
Voltage lower than 185 V.
Contact an electrician.
Ignition electrodes disrupting ionisation current.
Adjust ignition electrodes. Re-polarise the
transformer.
Poor earth connection.
Ensure adequate earth connection.
Phase and neutral swapped around.
Check wiring diagram and change
accordingly.
Burner trips during pre-aeration:
Air sensor faulty or incorrectly set.
Increase/decrease air setting. Reduce air
volume.
Ignition load incorrectly set.
Increase/decrease gas supply Reduce
airflow.
Gas pressure too low.
Increase pressure. If necessary, contact gas
supplier.
Pulsations at start-up:
Ignition electrodes incorrectly set.
Adjust .
Gas pressure too high.
Check and adjust using pressure gauge and
pressure control valve.
Flue gas side blocked.
Check the chimney flue.
Burner pulsates during operation:
Burner incorrectly set.
Adjust.
Burner dirty.
Clean the burner.
Incorrect chimney.
Check and modify dimensions if necessary.
Burner functioning properly but with occasional blockage:
Ionisation current too low.
Check. Must be at least 6 µA, but should
ideally lie between 8 and 20 µA.
UV cell incorrectly positioned.
Adjust.
Voltage drop at certain times.
Must not drop below 15% of rated voltage.
Contact an electrician if necessary.
Incorrectly set or faulty air sensor.
Check the settings and reset, or replace.
Ignition electrode overload.
Replace.
Burner control ambient temperature too high.
Insulate for heat, Max. 60 °C.
Ignition spark too weak.
Check the transformer.
Poor combustion:
Poor draught conditions.
Check the chimney.
Flue gas temperature too high.
Boiler overloaded Decrease the gas volume,
sweep the chimney if necessary.
CO
2
content too low.
Choke the air supply. Check the boiler for
any leakages. Choke the draught if too high.
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Страница 52: ...Enertech AB P O Box 309 SE 341 26 Ljungby www bentone com ...