Hi! I have an older Pentair Mobiletouch from 2007 that will not display any data or interact with my Itellitouch system. It will not read the correct time or temperatures. Only 12:00AM and 0 degrees. I checked the wiring both to the tranceiver and inside the Itellitouch box. All wires are connected properly and intact. I checked the wire itself and found no defects visible. I took the housing off the transceiver and only briefly saw lights on the RF and the correct time but that quickly disappeared and I could not get the lights to reappear. The part number for the transceiver is 520113. How can I determine if I need a new transceiver or if this is a different issue? Can I just buy another transceiver? If I do so, are they plug and play or do they require set up? Thanks in advance for your help.