Big Nil, sounds like you may have a bad power supply, if components are going that offend.
But our pump motor is fairly tough when it come to voltage change, did you check the fan port itself ?
My best guess, likely you have a bad connector on the pump, only reason it would just "stop".
Anyhow, RMA it, we will get it back and see whats up. So far running well under 1% rma
BTW Guys, C-Systems and AVT has had no phones / internet till this morning.
What a mess, communications company blames phone company, phone company blame communications company.
Two days ago communications changes the new buildings router / switch / and BPX, the whole system to prove there point !
Yesterday Bell finally admits it's there problem, and this morning everything works !