Help!!! Heater Issue/Climate control Switch Options

[TrdPnoy]

Hello Guys/Girls

I just finished my 5sfe Swap because my older one knocked. Anyways before I started the car I checked everything from sensor connection being plugged and all fluids back in the vehicle Everything was good. So I started then popped off the rad cap to let the coolant flow and I noticed after a bit that coolant isn't circulating through the system properly and my climate control stop working, it worked for a bit until I pressed the defrost and then tried the a/c button. it just died. The climate control still has the backlight but when I press any of the selections none of them light up in bright green or orange for defrost. I don't know what it could be should I take my old ECT sensor, ECT sending unit sensor from the older engine along with the newer thermostat/water neck. Could it also be that one of my heater hose is an after market one from the local parts store and doesn't have the factory bends???

Sorry for the grammar I just don't know what to do at this point. I was so happy it started and ran then this happened. I don't know if it has something to do with a sensor that it controls the heater switch from working.