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Symptom | Potential Issue | What to do |
---|---|---|
Roughing pump tripped off | Radiation related fault | See - Resetting a roughing pump fault |
Roughing pump won't start | Error message is present | Check "More..." status to see what error is listed. |
Roughing pump won't reset an error | There is a real problem, or pump has been damaged | See - Resetting a roughing pump fault |
Turbopump tripped off | Most likely related to loss of backing pressure | Fix the problem with the roughing pump/foreline configuration then restart the turbo as described in Restarting DPS pumps. |
Radiation related fault | See - Resetting a turbopump fault | |
Roughing pump or turbo not responsive | Pump is in local mode, not remote | Put pump into remote mode. See Setting pumps to remote mode |
US4 stage cannot be restarted | Probably radiation damage | See - Pump redundancy |
Foreline valve won't open | Foreline interlocks need to be cleared | Reset foreline inerlocks from "Foreline Vlv Intlks..." panel |
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