Cause of error code Er11

Ignition has Failed 10 (Ten) Times

Solution for error code Er11

Press the Power button to clear the Error Code. If Error happens again:

- Monitor the gas pressure to the boiler while in operation. Ensure pressure is between 3.5 and 14” WC.
- Check gas valve wire. Ensure connection is secure.
- Check flame detection sensor. Ensure connections are secure. Normal operating settings are more than 2.5DC before ignition, less than 2.5DC after ignition.
- Check igniter transformer for proper connection.
- Clean the spark igniter with steel wool to remove oxides. Ensure proper separation (3-4 mm).
- Replace the spark igniter if damaged.
- Assure that the flame is stable when lit.
- If the problem persists, replace the main control.