---
title: F-900 Flow Block Error
description: F-900 Flow Block Error
---

[Skip to content](https://knowledgebase.felixinstruments.com/f-900-flow-block-error#main-content)

English

Show submenu for translations

![felix logo 8-15-2019 transparent-1](https://knowledgebase.felixinstruments.com/hs-fs/hubfs/felix%20logo%208-15-2019%20transparent-1.png?width=250&height=153&name=felix%20logo%208-15-2019%20transparent-1.png)

Open main navigation

Close main navigation

- English
  
  Show submenu for translations
- [Submit a Support Ticket](https://felixinstruments.com/food-science-instruments/nir-spectroscopy/f-750-produce-quality-meter/support/#SubmitaTicket)

[Submit a Support Ticket](https://felixinstruments.com/food-science-instruments/nir-spectroscopy/f-750-produce-quality-meter/support/#SubmitaTicket)

 How can we help you?

- There are no suggestions because the search field is empty.

1. [Felix Knowledge Base](https://knowledgebase.felixinstruments.com/?hsLang=en)
2. [Gas Analysis Tools](https://knowledgebase.felixinstruments.com/gas-analysis-tools?hsLang=en)
3. [F-900 Ethylene Analyzer](https://knowledgebase.felixinstruments.com/gas-analysis-tools?hsLang=en#f-900-ethylene-analyzer)

# F-900 Flow Block Error

## Troubleshooting steps with the 'Flow Block'

If the your F-900 shows a Flow Block message , you will need to check if the unit’s pump is running by listening for the hum/sound of the pump and going into Setup \> Flow \> Actual Flow see what the live rate is.

If the pump is not running or the Actual Flow rate is extremely low, raise the Set Flow rate from 80 (the standard) to 100. Then take a measurement, running the F-900 in monitor mode.

After the stabilization period, the pump should start running again. If it remains silent, the pump may have failed and may need to be returned to our facility for repair.

- [NIR Analysis Tools](https://knowledgebase.felixinstruments.com/nir-analysis-tools?hsLang=en#main-content)

    - [F-751 Quality Meters](https://knowledgebase.felixinstruments.com/nir-analysis-tools?hsLang=en#f-751-quality-meters)
    - [F-750 Produce Quality Meter](https://knowledgebase.felixinstruments.com/nir-analysis-tools?hsLang=en#f-750-produce-quality-meter)
- [Gas Analysis Tools](https://knowledgebase.felixinstruments.com/gas-analysis-tools?hsLang=en#main-content)

    - [F-900 Ethylene Analyzer](https://knowledgebase.felixinstruments.com/gas-analysis-tools?hsLang=en#f-900-ethylene-analyzer)
    - [F-9xx Handheld Gas Analyzers](https://knowledgebase.felixinstruments.com/gas-analysis-tools?hsLang=en#f-9xx-handheld-gas-analyzers)
- [Software](https://knowledgebase.felixinstruments.com/software?hsLang=en#main-content)

    - [AppBuilder](https://knowledgebase.felixinstruments.com/software?hsLang=en#appbuilder)

[![felix logo 8-15-2019 transparent-1](https://knowledgebase.felixinstruments.com/hs-fs/hubfs/felix%20logo%208-15-2019%20transparent-1.png?width=200&height=123&name=felix%20logo%208-15-2019%20transparent-1.png "felix logo 8-15-2019 transparent-1")](https://knowledgebase.felixinstruments.com/?hsLang=en)

[mailto:sales@cid-inc.com](mailto:sales@cid-inc.com)

Copyright © 2024, CID Bio-Science