My spa blower went bad, and shopping a replacement. From the photos I attached, it seems like its 120V and not 240V? (this one was wired back in 1987), I see the wire colors seem to be white/white, one is green/blue, and the other looks Red/Black. Now the colors may have faded a bit, but the green/blue seems unusual? So my question is, is this a 120V wiring set up and would the new 1HP blower likely just have green/black/white, and assuming that blue wire is from the old unit, is that unusual to have been connected to the green. hope I made sense