x14 R2, fans stuck on max, manufacturing mode

Hi, my fans are stuck on maximum (100) the moment my laptop is on. I’ve tried switching different performance modes, uninstalling Dell apps, restarting etc. Restarting does not stop the noise, only way to stop the noise is shutting down. Another issue that’s been happening that I don’t know if it’s unrelated is, upon boot up, a screen shows that it is in ‘Manufacturing mode’ and ‘service tag has not been programmed’. For some reason I think the BIOS has cleared my service tag. I’m trying to reach technical support but I cannot identify the service tag because the sticker on the back of my laptop has completely faded and the BIOS does not have my service tag. The email I used for purchasing/accessing the laptop also does not have my order listed for some reason so I have limited access to information and help. I have the email confirmation and invoice of the order from last year and I have also opened up the back of my laptop where I can find a bunch of numbers on the different components. My question is where can I find help? I cannot use my laptop with the issue above.