Boiler control panel repair

This is an Ariston gas boiler control panel:

The gray "cube" below the transformer is a 100nF 400V film capacitor.

The flame supply voltage is generated through this ...

As the transformer is being judged to be warming up, it will shorten its capacity ...

Instead of 100nF it was only 6nF

It's a simple mistake, but it's hard to find. I hope I helped others :).

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