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What This Guide Helps With
Troubleshooting strip feed, transport, tray movement, or jam errors caused by strips, contamination, alignment, or mechanical obstruction.
Step-by-Step Troubleshooting
Ensure Patient Safety First
Confirm the analyzer is not actively processing patient samples before troubleshooting.
If patient testing is urgent, have staff use an alternate analyzer or approved backup method.
Expected outcome: Troubleshooting is performed without delaying patient care or risking incorrect results.
Stop Testing and Preserve the Sample Workflow
Ask the operator whether any patient strips were in process when the jam occurred.
Confirm whether results were completed, aborted, or need to be repeated according to lab procedure.
Expected outcome: No questionable or incomplete patient result is released.
Verify the Exact Error and When It Occurs
Observe the displayed message or operator report.
Note whether the jam occurs:
- When a strip is inserted
- During strip advancement
- Before reading
- After reading
- During startup or self-check
- Intermittently with certain operators or strip lots
Expected outcome: The failure pattern is clear before parts or settings are suspected.
Power Down Before Clearing Any Visible Jam
If a strip is visibly stuck, power the analyzer down before attempting removal.
Do not force the strip transport mechanism, tray, or carrier.
Expected outcome: The analyzer is safe to inspect and the transport mechanism is not damaged during clearing.
Check for a Misloaded, Bent, Wet, or Damaged Strip
Inspect the strip path for:
- Bent reagent strip
- Doubled strip
- Wet or swollen strip
- Strip inserted at an angle
- Strip with excess urine dripping into the feed path
Remove only loose or easily accessible material.
Expected outcome: Any obvious strip obstruction is removed without forcing the mechanism.
If this resolves the issue, clean the area as appropriate, restart the analyzer, verify operation, document the finding, and stop.
Inspect the Strip Loading Area
Check the strip entry area and transport surface for dried urine, crystallization, debris, paper lint, glove powder, or reagent pad residue.
Clean accessible exterior and operator-cleanable areas according to facility procedure and manufacturer-approved cleaning guidance.
Expected outcome: The strip path is clean enough for smooth strip movement.
Why it matters: Dried urine and reagent residue can create drag, cause sensor detection problems, or prevent proper strip advancement.
Check the Strip Table, Carrier, or Transport Area for Obstruction
Inspect the visible strip transport area for:
- Foreign objects
- Broken strip pieces
- Dried deposits
- Misaligned removable parts
- Parts not fully seated after cleaning
Reseat only user-removable components that are intended to be removed for routine cleaning.
Expected outcome: The transport area is clear and properly seated.
Verify the Correct Reagent Strips Are Being Used
Confirm staff are using the appropriate Siemens CLINITEK-compatible urine reagent strips for the analyzer and facility workflow.
Check that strips are not expired, warped, exposed to excess humidity, or stored improperly.
Expected outcome: The analyzer is being fed with valid, flat, dry strips.
Why it matters: Warped or humidity-damaged strips may not travel correctly through the mechanism.
Check Operator Technique
Ask staff to demonstrate how the strip is prepared and inserted.
Look for:
- Excess urine left on the strip
- Strip inserted too slowly or at an angle
- Delayed insertion after dipping
- Incorrect orientation
- Contact with the transport area before proper placement
Expected outcome: Strip insertion matches the analyzer’s expected workflow.
If correcting technique resolves the issue, document user education and stop.
Restart the Analyzer
After clearing visible debris and confirming proper setup, power the analyzer off, wait briefly, and power it back on.
Allow the startup/self-check process to complete.
Expected outcome: The analyzer initializes without a transport, tray, or jam error.
Run a Non-Patient Verification Check
Use an approved control or test procedure per laboratory policy.
Observe whether the strip advances normally through the transport path.
Expected outcome: The strip feeds, advances, reads, and exits without hesitation, skewing, or repeat jam errors.
Check for Repeated Error With Multiple Valid Strips
If the error repeats, try more than one valid strip from an acceptable container or lot, if available.
Expected outcome: This helps separate a bad strip condition from a recurring analyzer transport issue.
Listen and Observe During Transport
Watch and listen during strip movement.
Note:
- Grinding
- Clicking
- Delayed movement
- Uneven strip travel
- Motor running without movement
- Strip skewing or stopping in the same location
Expected outcome: Any mechanical pattern is documented for repair evaluation.
Do Not Disassemble the Transport Mechanism Internally
Do not open internal covers, adjust sensors, lubricate mechanisms, bypass switches, or attempt motor-level repair unless authorized by service documentation and facility policy.
Expected outcome: Troubleshooting remains within safe Clinical Engineering limits.
Determine Device Status
If the analyzer passes verification testing and no further jams occur, return it to service per facility procedure.
If the jam error repeats after external checks, remove the analyzer from service.
Expected outcome: Only a reliable analyzer is returned for patient testing.
If the Problem Persists
If the strip transport or jam error continues after checking strips, loading technique, visible debris, removable parts, cleaning condition, and restart behavior, common external causes have been ruled out.
The issue may involve an internal transport motor, drive component, sensor, alignment problem, or contamination beyond operator-accessible areas.
The device should be:
- Removed from service
- Labeled Out of Service
- Sent for repair, bench evaluation, or vendor service as appropriate
Knowing when to stop is proper troubleshooting. Repeated strip jams can create invalid or incomplete patient results and should not be worked around.
Clinical Use Tip
Do not troubleshoot strip transport problems while patient testing is actively in progress. Have the lab move testing to another analyzer or backup process first. Any strip involved in a transport fault should be treated as unreliable unless the laboratory’s procedure clearly states otherwise.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Lab reported the Siemens CLINITEK Advantus displayed a strip transport jam error during urine strip processing."
Cause
What was observed during troubleshooting.
Example:
"Found dried residue and a partially misfed reagent strip in the accessible strip transport area."
Resolution
What action was taken.
Example:
"Removed the strip, cleaned the accessible transport area, restarted the analyzer, ran verification testing, and returned the unit to service after normal strip advancement was confirmed."
Helpful Details to Include (If Known)
- Exact displayed error message
- When the jam occurs in the test cycle
- Whether a patient strip was affected
- Strip lot and expiration date
- Whether strips were wet, warped, or humidity exposed
- Whether the strip path was visibly dirty
- Whether removable parts were seated correctly
- Whether cleaning was performed
- Whether the error repeated after restart
- Any grinding, clicking, or abnormal transport noise
- Whether controls or verification testing passed
- Final device status
Final Thought
Strip transport problems on a urine analyzer should be approached carefully because they can affect sample timing, strip positioning, and result reliability. Start with patient safety, strip condition, operator technique, visible contamination, and basic reset steps before suspecting internal failure. If the problem repeats after external causes are ruled out, remove the analyzer from service and document clearly using the CCR method.
That is successful troubleshooting.