No flow at all from HTEC-500/510 pump
Purpose
This article will explain possible causes of the lack of flow in an HTEC from a problem in the degasser.
Solution
If the pump pressure reading is zero or nearly zero, there is a possibility that the tubing or degasser located upstream of the HPLC pump has been clogged. Please try to connect a disposable syringe to the degasser outlet using a degasser syringe adapter and aspirate with DI water. If water is coming into the syringe, please check the flow of the pump. If there is no/little flow from the degasser, please see our article on how to handle a clogged degasser.
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