Good evening guys.

I have recently carried out some repairs to one of my miners, all tho I think i have correctly soldered the elbow power connectors, I'm having some issues which has led me to create this post to try and determine if I am choosing the wrong products.

I have watched several videos on youtube and I have found one video in that the creator claims that it's vital for "gold solder" to be used. upon searching for "gold solder" I only seem to find jewelers solder? Surely this isn't the required solder in order to carry out repairs?

Here's the flux and solder I have used to replace the sockets with no success.

https://www.ebay.co.uk/itm/393138762971

https://www.ebay.co.uk/itm/225464766264?var=524458659746

Could anyone confirm what the best flux and solder are? also when using this rosin flux I have, is it crucial to remove all remaining flux once soldering is complete? is it conductive?

I have struggled to find answers elsewhere, thanks in advanced to all.