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Errors


Boiler type MARQUIS TWH200

Error code 11

Cause:

Ignition has Failed 10 (Ten) Times

Solution:

Press the Power button to clear the Error Code. If Error happens again:
1. Monitor the gas pressure to the water heater while in operation. Ensure pressure is between 3.5 and 14” WC.
2. Check gas valve wire. Ensure connection is secure.
3. Check flame detection sensor. Ensure connections are secure. Normal operating settings are more than 2.5DC before ignition, less than 2.5DC after ignition.
4. Check igniter transformer for proper connection.
5. Clean the igniter with steel wool to remove oxides. Ensure proper separation (3-4 mm).
6. Replace the spark igniter if damaged.
7. Assure that the flame is stable when lit.
8. If the problem persists, replace the main control