A large c-arm was being used for a procedure.As normal, the x-ray tech announced the amount of time the c-arm was in use at the 5 min, 10 min, 15 min and 20 min.After 20 min, the c-arm showed a warning message that it was overheating.The c-arm then stopped working.The tube heat monitoring components did not operate normally, system did not announce and event messages at 80% of heat threshold reached (as if should per mfr settings).System disabled x-ray when it reached 127% of heat threshold.After clinical engineering tested system and reached out to vendor tech support, a software reload and replacement of thermal switch / temp sensor were suggested and carried out.
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