Is that two pin temp sensor necessary?

[FMS88]

Since this thing runs so dang hot I chose a 190 on 175 off switch. I can always change it later.

What temp t-stat are you using? If you currently have the recommended 88C/190F t-stat, a 190/175 switch might be too low. As soon as the t-stat starts to open, the fans will switch on and run constantly. The 190/175 switch seems more appropriate if you're running an 82C/180F t-stat.

[85Ram50]

What temp t-stat are you using? If you currently have the recommended 88C/190F t-stat, a 190/175 switch might be too low. As soon as the t-stat starts to open, the fans will switch on and run constantly. The 190/175 switch seems more appropriate if you're running an 82C/180F t-stat.

IDK which Tstat is in there. I'm thinking I may have gone with a 180 since it runs so hot. But I'll find out when I change the housing and act accordingly. I'm going to start a new thread for the electric fan install when it's done.