I've had this happen to multiple probe-controlled ships now. When I have a small radiator installed on the vessel it will cause overheating and explosion of a single part. Sometimes is the probe core, sometimes it's the battery, or a solar panel. Seemingly no reason. I'm sorry if this has been reported already, the other heating thread seems to be related to older versions of the game, not so much to the radiator interaction. This is a new game with 1.04 ships. I know it is the radiators causing it because when I take them off, nothing explodes. It doesn't help that I'm not quite sure how the radiators and the new heating system works since it is not explained very well... Does it reduce heating from re-entry? Do all vessels produce heat? Anyway yeah. Any work around? I've already redownloaded and re-applied physics.cfg but it doesn't help. Here is a craft file for one of the ships that experiences the problem : http://www./download/ya768ff9jwvslte/Rescue_a_Kerbal.craft