Sadly there are several threads on this topic including mine. Both the main processor and the solid state switches inside that controller are no longer manufactured by the respective companies. I have a project on my back burner to build a plug compatible replacement but right now am in the middle of a house sale and shift to full time RV living. My controller is so far still functioning so I was not in a rush. Search for "140-1179
" number in this forum and in the iRV2 forum and you will find the threads.
Added link for one of the threads: https://www.irv2.com/forums/f110/lev...on-535556.html