Troubleshooting - Ferroli PEGASUS F2 N 2S Instructions For Use, Installation And Maintenance

Pegasus F2 N 2S

3.4 Troubleshooting

Fault
Cause and cure.
After a few attempts at ignition, the electronic controller shuts down the boiler.
Pilot light nozzle dirty - Clean with compressed air.
Check the regular gas flow to the boiler and the air has been eliminated from the pipes.
Check that the electrodes are correctly positioned and free of any deposits (see fig. 21).
Make sure that the boiler is connected to a good earth connection.
Check the connections to the ignition and ionization electrodes.
The electrodes are not discharging in the ignition phase.
Check that the electrodes are correctly positioned and free of any deposits (see fig. 21).
Regulation thermostat adjusted too low.
Check the electrical power supply.
Check the connections to the ignition and ionization electrodes.
Check the connections at the electronic flame controller.
Make sure that PHASE and NEUTRAL are not inverted and that the earth contacts are efficient.
Check the inlet gas pressure and any open pressure switches.
Reset the safety thermostat.
Reset the fume thermostat.
Make sure the room thermostat is closed.
The burner burns poorly: flames too high, too low or too yellow.
Gas valve filter dirty.
Check the gas supply pressure.
Gas nozzles dirty.
Make sure that the boiler is not dirty.
Make sure that ventilation in the room where the unit is located is sufficient for good combustion.
Smell of unburnt gas.
Make sure that the boiler is clean.
Check the draught of the flue.
Check that gas consumption is not excessive.
The boiler works but the temperature fails to increase.
Check the 2-stage adjustment thermostat works properly.
Check that the operator of the 2nd stage of the gas valve (full power) is supplied (see Fig. 14).
Check that gas consumption is not less than that provided for.
Make sure that the boiler is perfectly clean.
Check that the boiler is adequate for the system.
Check that the heating pump is not blocked.
Temperature of the water to the system too high or too low.
Check the 2-stage adjustment thermostat works properly.
Check that the pump is not blocked.
Make sure that the characteristics of the circulating pump are adequate for the system.
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