On-Site Troubleshooting & Field Service Support System

While many product issues can be diagnosed remotely, some require direct evaluation in the user’s operating environment. To address these situations, Mountain Stream Group provides on-site troubleshooting and field service support, extending technical, operational, and engineering insight directly to the point of use.

MSG travels to customer facilities to evaluate equipment performance under real-world conditions—where installation practices, environmental factors, and user workflows influence system behavior.

During on-site engagements, MSG conducts structured diagnostics that include:

• Direct observation of system operation
• Inspection of installation and electrical systems
• Data collection and validation
• User interviews to understand operational context
• Real-time testing, adjustment, and repair

After initial remote diagnosis, MSG was dispatched to a food manufacturing facility to inspect and repair a vacuum oven. Upon evaluation, the root cause was identified as a broken terminal on the temperature sensor wire.

MSG:

• Repaired the connection by replacing the terminal
• Tested the system to confirm proper operation
• Provided on-site user training to ensure correct use

Beyond the immediate fix, MSG identified a broader design inefficiency:

The need to crimp wire terminals increased assembly time and introduced potential failure points.

MSG recommended redesigning the controller PCB interface to incorporate:

• Lever-lock
• Push-lock
• Or screw-lock terminal blocks

This change would:

• Reduce assembly time
• Improve reliability
• Minimize field failures

A hospital reported smoke emanating from an oven used for wax-based smear testing, raising concerns about potential equipment failure and safety risks.

MSG conducted an on-site investigation that included:

• Physical inspection of the oven
• Download and analysis of internal system data
• Comparison with the hospital’s external temperature monitoring system
• Interviews with lab personnel to understand usage patterns

Based on findings, MSG determined that the issue was not a catastrophic failure, but a combination of operating conditions and parameter settings.

MSG:

• Adjusted operating parameters to stabilize system behavior
• Provided guidance on proper use under their specific application

The outcome:

• The oven remained in service
• No replacement was required
• No recurring issues have been reported nearly a year later

On-site troubleshooting serves as the real-world validation layer within the broader system, connecting:

• Remote diagnostics and technical support
• Troubleshooting documentation and service instructions
• Product inspection and repair systems
• Engineering feedback and product evolution

Each visit contributes to a continuous improvement loop:

Observe → Diagnose → Resolve → Recommend → Improve

• Complex or unresolved technical issues
• Product performance concerns in live environments
• Installation and configuration validation
• Customer training and operational refinement
• Warranty and service decision support

• On-site diagnostics and troubleshooting
• Electrical and mechanical system inspection
• Data collection and performance analysis
• Root cause identification and repair
• Customer training and operational guidance
• Engineering feedback and design recommendations
• Field-based insight reporting

• Product/Service Experience Engineering
• Technical Communication
• Process Optimization Strategies
• Continuous Improvement Systems
• Engineering Collaboration & Validation
• Cohesive Stakeholder Advocacy

This entry is part of the BEING Scientific — Connected Flows case study.

Related Design in Motion entries:

• Technical Support & Remote Diagnosis System
• Technical Troubleshooting & Service Instruction System
• Product Inspection, Repair & Resale System
• Controller Validation & Product Evolution System
• Operating Instructions System
• Controller Programming Guide Development System
• Quick Start Guide & First-Use Experience System