MGERDAU

Thank you, You've straighten me out. I did think the TB1 was a the group they were referring to - thank you so much!!!

Thanks, for the comment! So, I don't have any 120v components. In Group 2 I have the red wire and in Group 3 I have the black wire. I can't remember but if I disconnect and stow the white wire away won't that disable my GFCI?

Hi, I'm new here. I live in Central Oregon. In November my 20 year old hot tub stopped heating. I figured it was just the heater until I checked the circuit board; it was fried. So, I purchased a Balboa BP7 Retrofit Kit; its pretty much a plug and play. However, in the electrical schematic it says, "FOR DEDICATED 240V DO NOT CONNECT WHT AND DO NOT CONNECT ANYTHING TO GROUP 4", group 4 is the power block in the circuit board where the neutral or white wire would go. I can't think of why and I haven't received an answer from Balboa. Anyone have any suggestions?