I am brand new to site forum, so I hope not to offend. I have a 1998 Watkins Siberian with an IQ2000 control system. Several years ago I replaced the topside controller as it had been beaten by the Phoenix sun and had gotten wet. All went well. Now the same issues have arisen and I need to replace the panel again. The problem is the part (71502 or 71836) is obsolete and I cannot locate another one. I had to buy a used one the first time I replaced it. Would it be possible to replace the whole system with an IQ2020? If so would it be cost effective or should I be shopping for a whole new or used spa?
