No, it is just that it will not fill the trough if you start it up with one of the B&W programs. I guess Jobo figured that it was close enough to room temperature to not matter. Since I always have the tempered water supply set to 20 deg C anyway, I just fill the trough by using the method I described above. I've been doing it for years, so I don't even think about it anymore. Just leave the lid open, select E6, turn it on and let the trough fill. It automatically cuts off at the right point. Turn the machine off, turn the dial to the appropriate B&W program, shut the lid and turn the machine on.