We have 2 Varian Prostar HPLC systems in our lab equiped with 330 Detectors. Before 3 months while was running the analysis the lamp indicator went off and we replace the lamp. The new lamp for a few minutes was on and then again turned off. We replaced again but still the same thing happened. After that, we thought that was the power supply. We replaced the power supply but the problem remains.

Yesterday, the same thing hapened to the other Varian. :cry:
Now we are in dead end, since there are not available 330 Detectors in the market anymore. :roll:

Any thoughts or recommendations of what would might be the problem?Any suggestions how we can fix this?