Live Plumbing Help Plumbing and Heating Answers

This is a close up of the flame sensor, you may think that it is not that dirty and could not be the cause of the problem, sadly some inexperienced plumbing and heating technicians, will look at a flame sensor like this and assume it is not the problem.
But they are very wrong, that little misunderstanding has costs many customers a small fortune in replacing other parts that did not need to be replaced.  

 

Flame sendor close up

 

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