Yeah Gav . The PF would definitely not be the only thing that suffered . That much heat to do that to the PF surely would have melted wires / connectors and god knows what else underneath . Looking at that mark the PF must have been very close to being in flames . Funny thing is if you read in the description they actually clear-coated over the top of that burn mark to stop it getting any worse (if that's possible) .. Why would you bother ??