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Manufacturer
Model
What This Guide Helps With
Addresses water, drainage, waste, reagent-flow, leak, or other fluid-handling faults caused by external connections, containers, restrictions, or service-level problems.
Step-by-Step Troubleshooting
1. Protect Slides and Stop Operation if Leakage Is Present
Do not continue staining patient slides when wash or waste handling is unreliable. If liquid is leaking near electrical components or onto the floor, stop use and make the area safe.
Expected outcome: Patient specimens and personnel are protected before troubleshooting proceeds.
2. Confirm the Exact Fluidics Condition
Identify whether the problem involves water supply, washing, draining, waste, a leak, slow flow, or a general fluidics warning. Record the exact displayed message.
Expected outcome: The affected fluid function is clearly identified.
3. Inspect External Water Supply Connections
Where applicable, confirm the water supply is available and external tubing is securely connected, not kinked, compressed, or visibly leaking.
Expected outcome: The external water path is intact and unrestricted. If correcting the supply restores operation, proceed to final verification.
4. Inspect Drain and Waste Connections
Check accessible drain tubing, waste routing, and containers for kinks, blockage, poor positioning, overfill, disconnection, or leakage.
Expected outcome: Waste can exit the system normally without backup or leakage.
5. Check Reagent and Fluid Containers
Verify applicable containers are correctly positioned and have not shifted, overflowed, or leaked.
Expected outcome: Containers are stable, properly seated, and suitable for normal operation.
6. Inspect Accessible Areas for Obstruction
Look for labels, slide fragments, dried reagent, residue, or other foreign material around accessible wash, drain, and staining areas.
Expected outcome: No visible obstruction remains in accessible areas.
7. Check for Environmental or Installation Changes
Determine whether the stainer was recently moved or whether plumbing, drainage, bench position, or nearby equipment was changed.
Expected outcome: Any installation-related cause is identified and corrected through approved means.
8. Perform a Controlled Operational Check
After correcting external conditions, run the approved readiness or test function without exposing patient slides to an uncertain process.
Expected outcome: Water, drainage, waste, and fluid status remain normal without leaks or recurring faults.
9. Perform Final Functional Verification
Confirm normal startup readiness, fluid handling, rack processing, and absence of leaks or system warnings.
Expected outcome: Fluidics functions remain stable and the stainer is ready for use. The issue is resolved and troubleshooting can stop.
10. Escalate Persistent Fluidics Faults
If external supply, drain, waste, container, and obstruction checks are normal but the fault remains, do not open or disassemble internal pumps, valves, manifolds, or tubing assemblies.
Expected outcome: The equipment is removed from service and routed for qualified repair.
If the Problem Persists
Common external water, drain, waste, reagent-container, obstruction, and installation causes have been ruled out. The remaining condition may involve internal pumps, valves, sensors, tubing, fluid-control mechanisms, controller functions, or configuration.
Remove the stainer from service, label it Out of Service, and send it for repair or bench evaluation. Use appropriate Leica Biosystems documentation and approved test equipment. Internal fluidics repair should be performed only by qualified personnel.
Verify leak-free operation, correct fluid handling, and required staining performance before return to service. Knowing when to stop external troubleshooting is proper troubleshooting.
Clinical Use Tip
Any active leak near electrical components or any uncontrolled fluid discharge is an immediate stop-use condition until the source is corrected.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Laboratory staff reported a waste-related fault and slow drainage from the HistoCore SPECTRA ST."
Cause
What was observed during troubleshooting.
Example:
"Clinical Engineering found the external drain tubing was kinked behind the stainer."
Resolution
What action was taken.
Example:
"Clinical Engineering corrected the drain-tubing routing, verified normal drainage with no leaks or recurring faults, and returned the stainer to service."
Helpful Details to Include (If Known)
- Exact fluidics or waste message
- Water supply status
- Drain routing and condition
- Waste container status
- Evidence and location of leaks
- Reagent-container condition
- Recent installation or plumbing changes
- Obstruction or residue found
- Results after correction
- Final device status
Final Thought
Protect slides and personnel first, inspect external fluid paths before assuming an internal problem, verify leak-free normal operation after correction, and escalate unresolved fluidics faults promptly.
That is successful troubleshooting.