Mce selector..car will stop and answers calls in the up direction but in the down car goes straight to the lowest level no matter what calls r pushed on the cop. I think it my std triac...but I don't know which one that is in the selector box. Prints r no help.

Check in the print a lot of times STD/R0 is at terminal 71

In the selector box if 71 light up then it's not the triac

71 light never fires..only light for 72, which is the up light

I just checked the sensor and that's reading good

I think from left to right you have terminal 1then 2 . After that are the 25 (LD) 26 (lu) 27(dz) then the 70's. The triac is in the same order.

R30 resistor in the selector box was the problem