On 03/06/2021 12:18, AnthonyL wrote:
On Wed, 2 Jun 2021 12:12:19 +0100, Andy
wrote:

AnthonyL wrote:

I'm somewhat confused as to how come it was still on with no
flame. If he'd forgotten to turn it off the flame would still be
burning. If he'd turned it on but didn't ignite then surely it should
have cut out the gas?
Does it pre-date flame failure devices?

It would seem so.

Take a look under the top cover of the burner. If it has a spark
electrode and a little thermocouple sticking up then it should be able
to detect flame failure. If there's just a spark electrode then it won't
have flame failure detection.