Ignition error:

5 failed burner starts: No ignition spark: -- Check the wiring -- Check the breakdown to ground / earth -- Check the condition of the burner deck -- Check the earthing There is an ignition spark but no flame formation: -- Check whether the gas tap is properly opened -- Check the gas supply pressure - Vent the gas pipe - Check the correct operation and adjustment of the gas valve - Check the air supply and flue gas discharge for blockage There is a flame but no or insufficient ionization (<1 μA): - Check whether the gas tap is properly opened -- Check the gas supply pressure -- Check the ionization/ignition electrode -- Check the earthing -- Check the wiring

False flame signal:-- Replace the ionization/ignition electrode

5x flame loss: -- Vent the gas pipe -- Check whether the gas tap is properly opened -- Check the gas supply pressure -- Check the correct operation and adjustment of the gas valve -- Check the air supply and flue gas discharge for blockage