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What This Guide Helps With
Troubleshooting cassette, strip loading, strip feed, or loading detection errors caused by setup, consumables, obstruction, or handling issues.
Step-by-Step Troubleshooting
Ensure Patient Safety First
Confirm the CLINITEK Novus is not actively processing a patient specimen.
If patient testing is needed, have laboratory staff use another validated urine analyzer or follow approved downtime procedures.
Expected outcome: No patient result is delayed, interrupted, or reported from a device with an unresolved loading fault.
Confirm the Reported Loading Error
Ask the operator what occurred when the issue appeared.
Confirm whether the analyzer displayed a cassette loading error, strip loading error, empty cassette message, strip feed failure, jam, or cassette recognition issue.
Expected outcome: The issue is confirmed as a cassette or strip loading problem rather than a general power, software, QC, or LIS issue.
Stop Testing and Secure Any In-Process Specimen
Verify whether a patient test was interrupted during the loading fault.
Have laboratory staff determine whether the specimen must be repeated according to lab policy.
Expected outcome: No incomplete or questionable patient result is released.
Check the Cassette or Strip Supply
Verify that the correct Siemens-compatible cassette or reagent strip supply is installed for the CLINITEK Novus configuration.
Check expiration date, lot information, and storage condition.
Expected outcome: The analyzer is being loaded with the correct consumable, and expired or compromised strips are not being used.
Verify the Cassette Is Properly Seated
Open the appropriate loading area only when the analyzer is idle and safe to access.
Remove and reseat the cassette or strip container according to normal operator-accessible handling.
Confirm it sits flat, fully inserted, and not tilted or partially latched.
Expected outcome: A misseated cassette is corrected and the analyzer recognizes the supply.
If the error clears after reseating and the analyzer passes normal startup or readiness checks, return the device to service.
Inspect for Obvious Obstruction or Misfed Strips
Look for loose strips, bent strips, fragments, packaging material, labels, or debris in the accessible loading path.
Do not force moving parts or disassemble internal mechanisms.
Expected outcome: Any visible obstruction is removed using approved external access only.
If removing an obstruction resolves the error and the device completes readiness checks, stop troubleshooting.
Check for Contamination or Moisture
Inspect the cassette area and accessible strip loading path for urine residue, moisture, dust, cleaning residue, or dried reagent debris.
Clean only external and operator-accessible areas using facility-approved cleaning methods.
Expected outcome: Contamination that could interfere with strip movement or detection is removed.
Verify Doors, Covers, and Latches
Confirm all cassette doors, access covers, and loading-area latches are fully closed.
A partially closed cover may prevent the analyzer from feeding or detecting strips correctly.
Expected outcome: The analyzer detects all covers as closed and allows normal loading.
Check for Damaged Consumables
Inspect the cassette or strip supply for physical damage, crushed packaging, warped strips, moisture exposure, or strips stuck together.
Replace with a new valid cassette or strip supply if damage is suspected.
Expected outcome: A defective or compromised cassette is ruled out before the analyzer is blamed.
Power Cycle the Analyzer Safely
If no patient test is active, restart the CLINITEK Novus using the normal shutdown and startup process.
Watch for startup errors related to cassette detection, strip feed, motor movement, or initialization.
Expected outcome: Temporary logic or detection faults clear after restart, or a repeatable hardware-related pattern is identified.
Test With a Known-Good Cassette or Strip Supply
Install a known-good, unexpired cassette or strip supply if available and permitted by lab policy.
Confirm whether the analyzer recognizes the cassette and feeds strips normally.
Expected outcome: The issue is narrowed to the consumable supply or the analyzer loading mechanism.
Document the Error Behavior
Record the exact error message, when it occurs, whether the cassette is recognized, whether a strip attempts to feed, and whether any unusual sound occurs.
Expected outcome: Repair escalation has useful evidence instead of a vague “does not work” report.
If the Problem Persists
If the cassette or strip loading error continues after verifying the consumable type, cassette seating, doors, covers, visible obstructions, contamination, and power cycle, common external causes have been ruled out.
The issue may involve an internal strip feed mechanism, cassette detection sensor, motor drive, alignment issue, or internal mechanical fault.
The device should be removed from service, labeled Out of Service, and sent for repair or bench evaluation.
Knowing when to stop is proper troubleshooting. Do not force the cassette, repeatedly cycle a jammed feed path, or disassemble internal loading components in the clinical area.
Clinical Use Tip
Do not troubleshoot cassette or strip loading errors while patient testing is active. Move testing to another analyzer first, especially if the analyzer may misfeed, skip, or incompletely process reagent strips.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Laboratory staff reported the CLINITEK Novus displayed a cassette loading error and would not feed urine reagent strips."
Cause
What was observed during troubleshooting.
Example:
"Found cassette not fully seated in the loading area; no internal disassembly performed."
Resolution
What action was taken.
Example:
"Reseated cassette, verified covers were closed, restarted analyzer, and confirmed strip loading completed successfully."
Helpful Details to Include (If Known)
- Exact cassette or strip loading error message
- Whether the cassette was empty, expired, damaged, or newly replaced
- Cassette lot number and expiration date
- Whether the cassette was reseated or replaced
- Any visible strip jam, bent strip, or debris
- Door or cover status
- Startup behavior after restart
- Unusual clicking, grinding, or motor noise
- Any unusual heat, odor, or visible fluid contamination
- Final device status: returned to service or removed from service
Final Thought
Cassette and strip loading errors should be approached logically. Start with patient safety, verify the consumable and loading setup, check for simple obstructions or cover issues, and avoid assuming internal failure too early. If external causes are ruled out, escalation for repair is the safest and most appropriate next step. Clear CCR documentation helps the next technician understand exactly what was checked and why the device was removed or returned to service.
That is successful troubleshooting.