This hot tub was a replacement for a larger hot tub with more jets and settings. The plug and go feature wouldn 't work so with the wiring already present we  decided to have an electrician hookup the 240. Even though our wiring was up to code for our area it wouldn 't work with this hot tub.  The electrician had to run new wiring. The space that he had to work in under the hot tub was very small which added to the time required. The panel to access the workings of the hot tub is also difficult to secure. Once we got it working, it so far is okay.