Enabling HVAC technicians to diagnose equipment issues faster in the field
Error Code Lookup
HVAC technicians frequently encounter equipment error codes when servicing systems in the field, but interpreting those codes often requires referencing manuals or contacting Technical Support. The solution dramatically reduced troubleshooting time and lowered support call volume by enabling technicians to resolve issues independently.
2018
SaaS
Product Management & UX Leadership
IMPACT:
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Technical Support wait times reduced by over 50%
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New user registrations increased by 300%
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Significantly faster diagnostic time for technicians in the field
The Executive Problem
When technicians encounter equipment error codes, diagnosing the issue can be time-consuming. Technicians often need to reference manuals, search online documentation, or call Technical Support for help interpreting the error.
This creates delays in service calls and increases the volume of support requests
A technician can spend up to 2hrs diagnosing an error code
My Leadership Role
I worked with Technical Support leadership and product stakeholders to identify opportunities to improve the diagnostic process for technicians.
My role included:
Problem Discovery
Leading research with technicians and support teams to understand how diagnostic information was currently accessed.
Opportunity Identification
Facilitating workshops with Technical Support to uncover existing knowledge resources that could be leveraged.
Product Strategy
Defining a mobile solution that would allow technicians to quickly search and interpret error codes while servicing equipment.
Experience Design
Designing a simple, mobile-first experience optimized for technicians working in the field.
Understanding the System
During discovery workshops, we uncovered an internal spreadsheet maintained by the Technical Support team that documented known equipment error codes and troubleshooting steps.
Although valuable, this resource was difficult for technicians to access while working on site. This insight revealed an opportunity to transform an internal knowledge base into a field-ready diagnostic tool.
Strategic Design Approach
Our strategy focused on making diagnostic information instantly accessible to technicians in the field. Key priorities included:
Speed
Technicians needed to locate diagnostic information quickly during service calls.
Simplicity
The interface needed to be simple enough to use in field environments.
Accessibility
The tool needed to work on mobile devices technicians already carried.
The Solution
We designed a mobile error code lookup tool that allows technicians to quickly search and view diagnostic information. The product includes:
- Fast search for equipment error codes
- Clear explanations of the error condition
- Step-by-step troubleshooting guidance
- Mobile-optimized interface for field environments
The solution enabled technicians to resolve many issues without contacting Technical Support.
Research & Validation
Research ensured the product aligned with real technician workflows.
User Research
Interviews with HVAC technicians revealed how they diagnose issues and how they experience friction at multiple touchpoints.
Competitive Anaylsis
We evaluated existing industry tools and found that most were too complex for quick field use.
Journey Map
Mapping technician workflows highlighted where fast access to diagnostic information would provide the most value.
Results
The tool quickly became a valuable resource for technicians working in the field.
Operational Impact
Technical Support wait times reduced by over 50%
Fewer support calls for common diagnostic issues
User Impact
Technicians could resolve issues faster during service calls
Increased technician independence and efficiency
Adoption
New user registrations increased by more than 300%
The tool is now used daily by technicians across the network
What This Project Demonstrates
This project highlights the value of combining research, product strategy, and simple design solutions to solve operational challenges.
Key takeaways:
- Small product innovations can deliver significant operational impact
- Field-focused design requires understanding real working environments
- Design leadership can transform internal knowledge into scalable product solutions
Have an opportunity in mind?
Let’s connect over coffee or have a quick virtual chat.