Switching to night vision

stanley721

One of my cameras is having a hard time switching over to black and white at night. I have it set at auto but in the month I've had it, it has only switched over once. I've tried to make sure it doesn't have a lot of light coming into it but still won't switch. I have another camera that has more light (landscape lighting) that it is exposed to but it switches fine. I have just been going in every night and in the morning and doing a manual swap, but sometimes I forget. Any suggestions?