HVACPart Identification & Selection4HighHVAC Technician$ implied
An HVAC technician cannot find a replacement for an obsolete circuit board controlling blower off-delay, and must either replace the entire unit or find a workaround.
No direct replacement part exists; manufacturer recommends replacing the entire unit, but technician believes a generic relay could work if function mapping were available.
52
0
Opp. Score
52
Severity
4High
Willingness to Pay
implied
Added
Jun 8, 2026
Workarounds Described
- considers using a generic time-delay relay to bypass the board
Implied Software Gaps
- Database of obsolete component replacement options with wiring guides
App Concept
PartCross HVAC Legacy Finder
An online database and community-driven platform that maps obsolete HVAC control board functions to generic replacement relays and modules. Technicians input the model and board symptoms, and the app suggests compatible generic parts with wiring diagrams, reducing costly full unit replacements.
Key Features
- Database of obsolete HVAC boards with functional pinouts and replacement matches
- Wiring diagram generator for generic relay installations
- Community forum and verified technician solutions
- Parts compatibility API for distributors
Target Users: HVAC technicians and small HVAC service companies across North America
Revenue Model: $12/mo subscription for individual technicians, $99/mo for companies with team accounts; free tier with limited lookups per month
Part of App Idea
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