Trouble Shooting "Safety stop Abnormality"

• Does the alarm occur during pre-purging? If so, replace the flame detection sensor (ZUV II).
• Does the steam pressure exceed 0.98 MPa? If so, perform a full blow, set the steam pressure to 0, and check for blockages in the copper pipe or piping to which the pressure sensor is connected.
• Does the alarm recur after restarting the boiler? If it does recur, it should be checked by a maintenance contractor.