Ps4 1215a comes on fan starts too run fast and turns off

Everytime I turn on my ps4 cuh 1215a the fan comes on too runs fast and load then shuts off sometimes before it shuts off it will flash really fast says it over heating then shuts off. But it's clean cause before this was happening it was saying disc unrecognized and wouldn't play any disc game or movie did all the safe mode fixs didn't work then took it apart cleaned it and then this started to happen please help wont stay on more then 5 to 10 sec