Intermittent Problem!!

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20 Nov 2016
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United Kingdom
Hello everyone,

I have an issue with my Glow Worm Ultimate 40FF.
The problem is sometimes my boiler does not start, it makes this noise
and it does it for ages, until I turn it off from the wall switch.
If I leave if off for like 30min to 1 hour, and turn it back on again it comes on with no problems, it does go through the cycles of on and off according to what the boiler upstairs requests and this can last 1 full day until it does it again, or it can go back to the "clicking" noise after 3 or 4 hours.

I suspect this is the PCB, I took it off and had a look measured all the resistors, diodes and capacitors and could not find anything wrong, or it could be something else and the relayu keeps clicking.

Any help would be greatly appreciated.

Thanks
 
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