HIVAC not ready error

The GC/MS 7890/5977 was found to have terminated a run due to a HIVAC not ready error. However, the instrument appeared fine and the run was restarted without any further issues for that run. However, this same error has happened a couple more times with the instrument being able to be restarted again without issue. What could be triggering the issue but also leaving he instrument is working order when found. We have already replaced the Pfeiffer pump hoping that would fix it but it did not.

0 paulsalverda 6 months ago

What version of MassHunter Acquisition are you running? Do you use Sleep and Wake methods? Do you copy methods between systems? Have you tried making a new method from the default?

The external Pfeiffer rough pump is not the High Vacuum pump. Does your system have a turbomolecular or diffusion high vacuum pump? If it's a diffusion pump, when was the last PM with diffusion pump oil change?
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0 NicoleC 6 months ago in reply to paulsalverda

We don't run MassHunter, just Chemstation. We noticed a leak in the rough pump and was hoping maybe somehow that was causing it but it was not. The turbo pump has not had a PM in a long time - I am new to the instrument and don't know much about the turbo pump
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0 paulsalverda 5 months ago in reply to NicoleC

Turbomolecular pumps do not have any maintenance procedures. They typically run forever and then don't start back up again after being stopped. Has the problem continued to happen?
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