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I have and Ultrasonic 2001 OHD with an AMTT-CS coinbox and recently have had several issues with it freezing up on not responding to things it is connected to. A bit ago, the touch screen was not responding, then the bill acceptor, then the changer, now 2 days in a row I have come in to find...

I am new and have a blinking light on the plc for the #5 input- rear ultrasonic. All other lights are either on or off. Wondering if the sensor is going bad because the ganrty wants to go all the way back to the exit doors for every wash no matter how long the car. I thought it might be the...