Review on Fuel Level Sensor Gauge For Boat Car Truck RV - 6.8" (175Mm) Stainless Steel RUPSE Fuel Sender Unit by Richard Turner

So at first when I installed it, it seemed to work. First time cutting grass and it did move a little but never went below 3/4 of a tank. Attempted to reprogram several time (9) and to no avail. Now it reads completely backwards. I have attached a short video. Unfortunately my window for return was up a week ago. There is only a 30 day return policy on this. I should have installed this as soon as I got it but life keeps me busy and installed it 2 days ago and went for the first use today. Absolutely bummed.