On this page
Asset Type
Manufacturer
Model
What This Guide Helps With
Addresses failure to flush endoscope channels or blockage alarms caused by setup issues, tubing problems, or external flow restrictions.
Step-by-Step Troubleshooting
Ensure Patient Safety First
Confirm the scope is not in use on a patient before troubleshooting.
Expected: Device is removed from clinical use
Why it matters: Prevents contamination risk or interruption of patient care
Verify the Reported Issue
Attempt to run a flush cycle and observe behavior.
Action:
- Confirm which channel is not flushing
- Note if there is no flow, reduced flow, or a blockage alarm
- Observe for any error indicators or abnormal sounds
Expected: Issue is reproducible and clearly identified
Why it matters: Confirms a true flushing failure vs user setup issue
Check Water Supply Connection (Most Common Cause)
Ensure the system has proper water supply.
Action:
- Verify water source is turned ON
- Check supply hose for kinks or disconnection
- Confirm adequate pressure from the source
Expected: Strong, consistent water supply
Why it matters: Insufficient water supply will prevent proper flushing
Inspect Tubing and Channel Hookups
Improper or obstructed tubing is a frequent cause.
Action:
- Disconnect and reconnect all channel lines securely
- Inspect tubing for kinks, cracks, or buildup
- Ensure correct port-to-channel matching
Expected: Tubing is clear, properly routed, and securely connected
Why it matters: Misconnection or restriction directly prevents flow
Check for External Blockage in the Endoscope Channel
The scope itself may be obstructed.
Action:
- Disconnect the scope from the Scope Buddy
- Attempt manual flushing using a syringe or alternate method
- Observe resistance or inability to pass fluid
Expected: Fluid passes freely through the channel
Why it matters: Confirms whether blockage is in the scope vs the flushing system
Inspect Filters and Inline Components
Filters can restrict flow if clogged.
Action:
- Check inline filters for discoloration or debris
- Replace filter if visibly dirty or overdue
- Verify no inline check valves are stuck
Expected: Clean filter allowing unrestricted flow
Why it matters: Blocked filters reduce or stop flow to channels
Test with Alternate Tubing or Channel Port
Isolate whether the issue is specific to one line.
Action:
- Move tubing to a different port
- Use a known-good tubing set if available
Expected: Normal flow resumes on alternate setup
Why it matters: Helps isolate a faulty port or tubing set
Observe for Pump Operation (If Applicable)
Some units use assisted flow mechanisms.
Action:
- Listen for pump engagement during flush
- Note abnormal sounds (grinding, no sound, intermittent operation)
Expected: Pump runs smoothly during flushing
Why it matters: Lack of pump operation indicates internal failure
If the Problem Persists
If water supply, tubing, filters, and scope blockage have all been ruled out, the issue is likely internal pump, valve, or control failure.
Remove the device from service, label it Out of Service, and send for repair or bench evaluation.
Knowing when to stop prevents unnecessary downtime and ensures safe operation.
Clinical Use Tip
Never troubleshoot flushing issues with a contaminated or patient-ready scope. Always move patient care or reprocessing needs to a backup device or alternate approved flushing method first to maintain therapy and workflow continuity.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Scope Buddy not flushing channels; blockage alarm during use."
Cause
What was observed during troubleshooting.
Example:
"Kinked tubing restricting flow to channel port."
Resolution
What action was taken.
Example:
"Replaced tubing and verified normal flushing operation."
Helpful Details to Include (If Known)
- Water source verified and tested
- Tubing condition and routing checked
- Filter condition inspected/replaced
- Channel manually flushed
- Pump operation observed
- Any alarms or indicator lights noted
- Environmental factors near the setup
- Final device status returned to service or removed
Final Thought
Effective troubleshooting starts with simple flow path checks before assuming internal failure. Always prioritize patient safety, verify external causes first, and document clearly to support future maintenance decisions.
That is successful troubleshooting.