1988 Dodge Ram Snow Plow Troubles

Hello sir(s), My questions are 2 sided and here we go. Ok I recently tried to plow my yard and the plow would not go up or down so we did some tests and found out the Motor Solenoid was defective, we then replaced it with a new one and when you try to raise up, angle left or angle right you only get a click or clicking at the Motor Solenoid. Also when you angle the plow or Raise up on it the lites dim heavily. Can you tell me what is going on here and what I can do to correct these problems? Any help is greatly appreciated. Have a good day!