Hi, It's not advised to hard-down the re-flow oven.There are two reasons for that ; extreme thermall difference in temp. will cause chain and drive shafts to warp and T/C's to crack.Let your "cooldown" profile do this safely within 45 mins. to an hour for you.The safe-zone temp. is around 80 -90 degree Fahreneit. Hope this will solve the problem. Best regards, pctech
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