Excess solder during manual solder jumper

It doesn't look to me like the jumper wire is wetting at all. I would immediately question the solderability - do you know how that jumper wire is finished (plating type)?

Also, how experienced are the solderers? It could be that the wire never gets hot enough to wet. For that matter it doesn't look like the whole pad is wetting either.

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I think Steve is on to it. The wire is not getting hot enough to wet. Either the solderer is attempting to solder too quickly, or the PTH is connected to a ground plane.

The solder sticking up through the hole leads me to think it's connected to a ground plane, with poor thermal relief on the PTH. While you won't be able to change the ground plane, you can train your solderers in better methods. More flux may help, and longer dwell times.

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Would like to know what type of soldering iron you are using. On this type of big jumpers, a continuous heating soldering Iron will do the job nicely in order to heat the jumper wire properly.

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