Well, it just happened again. We had a power fluctuation that had my office PC going on and off battery backup several times. I heard some kind of a noise elsewhere in the house, and thought it was coming from the TV room.
Anyway, as I was getting my son into the shower, I got a slight whiff of electrical smell. His bathroom is directly above our tank room area. Anyway, I venture downstairs and notice the QT (with the rescue fish) is not running, the smell is a lot stronger, but no smoke or fire.
I go into the tank room to check on things and notice that the other QT is not running either. Both of them are on the house current...so back to the outside QT, I check everything out and find that yet again, the Tunze nano cord has fried. This time inside the area where I joined it with a new cord.
No evidence of melting but something oozed out of the shrink. Seems so unlikely since my connections were done with shrink butt connectors, and then a used shrink tubing over the whole joint. But, it is obviously where the problem occured.
So I unplugged that, go to the main panel, and reset the breaker. All is good, but now I am really afraid to even attempt a repair on the pump. It is baffling to say the least.
Fish are fine BTW.