E33,34,35,37,38,39,40,41,42 - Meaning

Occurs when the internal valve piston is having trouble moving.

Possible reasons:

  • Contamination of valve inlet / outlets with debris from supply pipe or other.
  • Physical damage of the valve

  • Note: After cleaning etc, before resetting these error codes allow the fire to cool down. Upon starting the valve will reinitialize and perform a self recalibration and needs to be cold when doing this recalibration. Note: If the valve needs replacing, check the pipework for contamination to avoid repeated problems.

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