replying to tabbypurr, kennygw wrote:
Hi i think the pilot light is heating up the thermocouple okay. As it does
stay alight for about seconds.
Then it will start to hiss the i get a click sound as i have turn it off for
10 ten mins get the the light to stay on.
I would of guess that when the boiler is fully on it would keep the
thermcouple hot.
When the boiler flames down. The pilot light stags on for about 20 seconds
then the hissing sound is back on the click and it goes off.
Sound like some safety thing is kicking in.
I have had a look at the both ends of thermocople and tighten them off then
back up still the same.

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