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Wall-hung boiler common problem - unexpected flameout failure

[Abstract]:
i) If the pipe is taken out normally, the pipe is not plugged in, and the pipe is reconnected.
Fault phenomenon: After the fire is turned off, the main controller alarms, and the display shows the unexpected flameout fault code.
cause of issue:
a) Flame-induced needle carbon deposits.
b) Poor contact of the flame sensor pin connection.
c) The suction and exhaust ports are blocked or the air inlet of the flue is not outside the extended wall.
d) The wind on the outside is too big.
e) The gas pressure supplied is abnormal, too high or too low.
f) Controller failure.
g) The flame induction needle does not touch the flame.
h) The flue is not installed.
i) Install the intake and exhaust pipes into the public flue.
j) The ground wire is disconnected or broken.
Solution:
a) Clean the carbon deposit of the flame induction needle.
b) The flame sensor pin connection is well plugged.
c) Clean the suction and exhaust ports to make the suction and exhausting smooth.
d) Change the position or direction of suction and exhaust.
e) Adjust the gas pressure to the rated supply pressure.
f) Replace the controller.
g) Adjust the flame induction needle to a position where it can touch the flame during a fire or a small fire. It is best to be at the junction of the inner flame and the outer flame of the flame.
h) It is forbidden to connect the intake and exhaust flue to the public flue and move it to the outside.
i) If the pipe is taken out normally, the pipe is not plugged in, and the pipe is reconnected.