I pulled the cable from the little gear on the panel, but when I tried to pushed it back in, it only went in half way, no matter how hard I pushed it, is it OK? Anyway, let me first get the terms of the parts straght. The white face disc on the back end of the knob is the meter? The one facing the front and is next to the knob is the count down dial, which shows the capacity of gallon?
When I turned the knob until it clicked, I could see from the little round window in the motor that some white plastic wheel was turning, but I did not see any flag. The clicking noise seemed to come from the three black gears next to the panel. One large gear was on top of another gear of the same size. The third one was a small gear positioned in the middle of the two large gears. When the small gear turned, the two large gears were engaged and started moving. But in the end, they were just making clicking noise and remained at the same positions. Is the problem with the motor, the meter or something else? I know how to remove the white face disc on the back of the knob, but I cannot remove the knob or some of the gears behind it. I really appreciate your help.