My cloud ex2 show high temperature after replace disk

after i replace disk it’s say about 6000c . and when i put my old disk then again it’s look good
what is the problem ?

@a1_shay
Unknown for this My Cloud user WDMyCloudImage. You may want to try this forum.

http://wdstagingsplit.staged-by-discourse.com/c/network-attached-storage/wd-my-cloud-ex2