I have an airconditioner that has packed up; the problem is clearly with the controller board, there's a big hole blown in the top of the microcontroller package! I would guess that the board is beyond repair. Even if I could replace the microcontroller, I don't have the code to reprogram it. In case you're interested, it's an Ariagel TE160, very similar to the DeLonghi PAC400. The replacement boards are unobtanium, so I either need to repair this or somehow come up with an alternative. The unit is a split system, so there's a compressor, 2 fans and a condensate pump to look after, plus the infra red remote control to deal with; how hard can that be?