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No ideas? I've spoken to my plumber who suggested making sure the air vent was clear and loosening the large screw on the pump to release any air. The former released a small amount of air and the later didn't release any unfortunately. The boiler seems to be better than before, but it's still...

Hello all, I seem to have a problem with my Worcester 24CDI. When we're running the hot water for any length of time - e.g. a bath then the burner light goes out and then comes back on again a few seconds later. There is also a noise coming from the boiler during operation that sounds like a...