We have started working with 2 Siemens Artiste machines since last year. recently We are seeing "mlc error" and "mlc HW failure" too frequently on one of the machines which has been performing more than the other one.
It was suggested to have the room colder but it seems that it was not so effective. A mlc recalibration was also not beneficiary. Could it be as a result of a raiation-sensitive board in the system which should be changed periodically?
We have just installed a Siemens Artiste in our department. The error "Modulator Incomplete" is frequently occurring during the day. Its occurrence is random and does not have a trend. It can occur any time during warm up, exposure or waiting periods between two exposures. We were told that the error might be related to the oil pump and it will wane by time. Could it be true that this error occurs because the linac is new and it will become less frequent with time? Any suggestions?
