I would only run something like a small powerhead on the contact that stuck. If it stuck once, it may stick again. I thought I had explained the outlet thing, but I must have been talking to someone else.
Outlets 1,2,3,5,6,7 are solid state relays, these will handle higher current loads. Run lights, big motors and big heaters on these. Outlets 4 and 8 are mechanical relays. These also have a soft start function. These outlets work well for using small power heads that you want to cycle on and off.
For all of you Neptune folks. The Neptune Forum on RC is quite helpfull too.