QC test fails

Follow the steps for your error code. Use fresh SBT vials every time you try again.

The QC test checks that your BactoBox® measures correctly. Fix a failing QC test before you measure samples, because you cannot trust a result from a BactoBox® that fails it.

When the QC test fails, the program goes back to the Clean step.

Before you try again

• Use SBT consumables only. Run the QC test with an SBT QC vial, an SBT ready-made dilution vial and an SBT disinfection vial. Then the result tells you about your BactoBox®, not about your vials.

• Use a fresh QC vial and a fresh dilution vial every time. Both are for single use only.

• Use vials at room temperature. Warm or cold liquid changes the conductivity.

• Clean with a fresh SBT disinfection vial. This rules out the cleaning step as the cause.

Find your error code

Look up the code in Error codes and follow the During a QC test column in order. Most codes lead to one of these steps.

Check your consumables

Check the target concentration and your vials.

Check the flow cell

Look for liquid, then try a new flow cell.

Recover a flow cell

Deep clean a flow cell that failed.

Check liquid uptake

Make sure liquid flows into your BactoBox®.

Still failing?

Contact support. Tell us the error code and the steps you tried. We want to know when a QC test keeps failing.