All my refrigeration tickets are still current.
but this is a common problem
If it's a newer ac ( split system,room or portable). Its the electronic temp fucking up. solution new electronic temp pcb. frimware is also an poss issue ( not reco. temp pcb error nor accepting manual override )
for an older room ac ( those boxes hung in windows ). just dissconnect the temp gauge, that should fix the problem. if the problem isnt fix with this, the its a newer old ac and needs the temp for it's auto shut down. The solution to that it dissconnect the auto shut down.
The clicking noise is key, and " radiating " is an interesting word.... not blowing heat ? if it was radiating check the side panels for heat... inside and outside boxes ( i can tell yours it split ( you went outside to flip a switch)), As you don't have a baseline for how hot your system runs, umm, if you burn yourself on metal (if you can access internals), you got a problem. Turn it off.
it's clearly not a gas charge issue.