> Would heat cause the sockets to malfunction Since it works fine for a few hours, then all of a sudden stops until cooled
> down a bit.
>
> /Janne

Changing temperatures could cause the socket to "twist" a bit. But that's only a guess. You can find this out easily by using an
external trigger. If the problem disappears it's the socket, otherwise it's another reason. Maybe a cold solder joint. From the
distance a diagnosis is difficult.

Best wishes
Dieter Doepfer