where are you located ?
can you send me a private message with your number , we can talk with WhatsApp ?

any way for what you are telling me looks like is the servo unit , even that the thermic switch is in normal condition
i have 2 machine and i swap the servo unit and the alarm still on and the problem was the cpu board , the only difference is that the machine works for some times and when i get the alarm wait 5 minutes hit reset and start working again

you can get a sevo on ebay make sure of the servo number and if i am not mistaking has different specs than the X and Y

i do not thinks is parameter related