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elizabethmillsAug 14, 2025
What to do if the sample pump is running slowly on my E Instruments E4500 Measuring Instruments?
- JJenny RivasAug 14, 2025
If the sample pump in your E Instruments Measuring Instruments sounds slow, stops, or doesn't start, several issues could be the cause. First, ensure the water filter is clean and not soaked, and check the hose connected to the probe for any crushing. Next, verify the particulate filter is clean. After that, remove the rear flap and confirm the pump's electrical connector is properly connected to the printed circuit board. If these steps don't resolve the issue, the pump may be faulty and require replacement. Finally, the pump may be disabled; try switching the instrument off and then on again to re-enable it.