Originally Posted by exjay1
sounds like some sort of electrical interference. Check your ground connections on the pump, tv coax, preamp, maybe also at the elect panel/inverter etc. if you have access to a diffrent tv maybe hook that up to see if the problem remains to rule out the tv. not sure if it could be the pump itself causing the issue since the AC sometimes causes this but its a place to start. intresting problem, keep us updated.
Than for the info. I had a new twist last night. While using a coffee grinder, plugged in to the outlet in the kitchen, the same thing happened. Each time the grinder came on, the TV would lose signal, just as if I turned off the pre amp button.
Not the TV. Used a different TV and same thing. All wiring around the pump seemed tight. Now with the grinder doing this as well, seems like a more generalized electrical problem.