I’m sorry to hear about your experience. Many times if one of the side stops working 24-48 hours after it’s installed, there’s a reason for that. The product is thoroughly tested to make sure it works properly before it’s shipped out, however, the wires are very thinly soldered onto the circuit board from the manufacturer, and many times during the installation, one of the wires can pull loose from the circuitboard. If that’s not the case, please reach out to us through email, and we will get it handled for you.