Cleaned ps4, now it wount turn on properly

I recently disassembled my ps4 completely to clean it out since it was super dirty. However now whenever I power it on the fan starts spinning super fast, then the console shuts down and beeps 3 times. Anyone know what this could be? Oh I’m also missing 1 thermal pad and new thermal paste. I’ll be replacing both soon, could they be the cause of the issue?

When i turn on my ps4 it doesn’t wrod can you fix it for a low price

Yes try to apply thermal paste