I have a walk in that is not going into defrost, the defrost timer is new someone else wired this in. This is a Paragon 8145-20. If you can make any sense of this I have L1 going to 1, L2 to N common and blue from the bulb temp control all going to N, the other blue wire from temp. control going to 4, Red from evaperator going in 3, black from evap. going to 4, orange from evap. going to x. I will be going today to check other controls hopfully I will find one not workng proper. Any help would be great.