Electrohydraulic lithotripters · AUTOLITH family

Boston Scientific AUTOLITH Touch: troubleshooting and error codes

The ServiceForge knowledge base holds 15 documented symptoms for the Boston Scientific AUTOLITH Touch, with 19 ranked causes, 16 diagnostic checks with test points and expected values, and 0 error codes. Each symptom below shows its causes and the first check; the rest is one connection away. Connect ServiceForge to your AI

Symptoms

No power to unit

Unit does not respond to commands; LCD touch screen dark; no LED indicator illuminated

Ranked causes

1. Power cord not connected or disconnected (common)
2. Power cord damaged or deteriorated (occasional)
3. Wall outlet not powered (occasional)

First check

Verify power cord is connected

Test point: Rear panel power connector
Expected: Power cord fully seated and secured

2 more checks with pass and fail actions, 3 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Probe automatically flagged for replacement despite continued use patient safety

Touch screen displays REPLACE PROBE indicator or message even though probe appears functional

Ranked causes

1. Probe has reached pulse limit for safe operation (common)
2. Unit powered off and back on with same probe (occasional)

First check

Observe pulse count on display

Test point: LCD touch screen display field
Expected: Total pulses delivered shown; compare to probe specification limits

1 more check with pass and fail actions, 3 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Unit does not discharge pulse when footswitch activated high voltage

No high-voltage discharge occurs when operator steps on foot-pedal despite unit powered on and probe connected

Ranked causes

1. Extender cable or probe not properly connected (common)
2. Unit in standby mode (occasional)

First check

Verify extender cable connection

Test point: Probe connector on front panel
Expected: Cable fully seated and engaged

1 more check with pass and fail actions, 2 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Calibration recommended alert on startup

Unit displays 'Calibration Recommended' screen for 10 seconds at power-on after extended use

Ranked causes

1. Unit has delivered approximately 250,000 pulses or 5 years of service (common)

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

CALIBRATION RECOMMENDED screen appears after 250,000 pulses

Calibration recommended screen displays after 250,000 pulses have been delivered and remains visible for 10 seconds before auto-transitioning

Ranked causes

1. Routine maintenance interval reached (common)

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

CONNECT PROBE message displayed and unit will not start

After power-up, main control screen displays CONNECT PROBE message and will not allow operation

Ranked causes

1. Probe not connected or not designated for model (common)

First check

Verify probe is connected to extender cable

Test point: Probe connector at extender cable
Expected: Probe firmly locked with audible click

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Endoscope damaged during procedure patient safety

Endoscope lens or distal end damaged; operator fired probe tip while inside endoscope

Ranked causes

1. Probe fired while tip inside endoscope instead of extended beyond distal lens (common)

First check

Verify probe tip extension distance before firing

Test point: Distal tip of probe relative to endoscope distal lens
Expected: Probe tip at least 5mm from distal lens of endoscope

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Extender cable lost or missing

Extender cable not available; unit cannot be operated

Ranked causes

1. Extender cable misplaced, lost, or damaged (occasional)

First check

Verify extender cable is present and accounted for

Test point: Equipment storage, surgical cart, sterilization area
Expected: Extender cable located and ready for use

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Incorrect irrigating solution used during procedure patient safety

Non-saline irrigant introduced into endoscopic field; may affect shock wave efficacy or damage equipment

Ranked causes

1. Wrong irrigating solution selected or inadvertently used (common)

First check

Verify irrigating solution identity before use

Test point: Irrigation fluid container and label
Expected: .9% normal physiological saline

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

INSPECT PROBE alert at 90% life patient safety

Alert symbol appears, audible beep (3 times), and INSPECT PROBE message displayed when probe reaches 90% of useful life

Ranked causes

1. Probe approaching end of useful life (common)

First check

Observe probe for unusual or unexpected performance

Test point: EHL probe output and function
Expected: Normal pulse delivery with expected fragmentation

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

REPLACE PROBE message displayed, unit stops firing patient safety

Probe has reached 100% useful life, REPLACE PROBE message appears, audible alert sounds, and unit will not deliver EHL pulses

Ranked causes

1. Probe reached end of useful life (100%) (common)

First check

Verify probe is no longer functional

Test point: EHL probe output
Expected: No pulses delivered when foot pedal pressed

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Report Fault Code screen appears on startup

Internal fault detected and displayed on screen with service contact information, unit will not proceed beyond fault code screen

Ranked causes

1. Internal circuit or system fault (rare)

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Tissue damage or organ perforation during procedure patient safety

Patient experiences unexpected pain, bleeding, or perforation detected during or after lithotripsy

Ranked causes

1. Probe distal tip pressed against tissue during discharge (common)

First check

Verify probe tip positioning

Test point: Distal tip position inside biliary duct or target location
Expected: Probe tip not in contact with tissue walls; suspended in fluid

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Unit does not deliver EHL pulses patient safety

Foot-pedal depression does not result in EHL pulses being discharged into saline or tissue

Ranked causes

1. Faulty EHL probe (common)

First check

Substitute a new EHL probe and test discharge

Test point: EHL probe tip in 0.9% saline solution
Expected: 5 EHL pulses delivered as set

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Unit does not power on high voltage

LED on front panel does not change from blue to green when power switch is turned on

Ranked causes

1. Fuse open or blown (common)

First check

Verify power switch is in on position

Test point: Rear panel power switch (A)
Expected: Switch fully depressed to ON position

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Community

0 fixes logged by technicians through their AI, with outcomes, for this model.

ServiceForge knowledge base record. Field-unverified unless technicians confirmed it. A teaching summary of the record, not a service manual. Export 2026-10-14.