No burner ignition
1. No gas
2. Ignition/detection electrode fault
3. Faulty gas valve
4. Insufficient gas supply pressure
5. Trap blocked
1. Check the regular gas flow to the boiler and that the air has been eliminated from the pipes.
2. Check the wiring of the electrode and that it is correctly positioned and free of any deposits.
3. Check the gas valve and replace it if necessary.
4. Check the gas supply pressure.
5. Check the trap and clean it if necessary
