Error Code 12

EC 12, or Error Code 12

An error code 12 indicates a flame loss. This means that the unit is detecting a flame, but the flame is being extinguished during operation (weak flame).
 
 Common issues associated with a 12 error code include: 

  1. Insufficient gas supply. 
  2. Insufficient air supply.
  3. Debris on the flame sensor.

It is recommended that you contact a servicer to troubleshoot this error code.

Please visit http://support.noritz.com/servicereplocator.php to find a local service representative.

Updated on April 12, 2021

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