HVACDiagnostics & Troubleshooting4HighHVAC Technician$ implied
LG mini split system fails communication between outdoor unit and branch box during pipe detection, showing error 204/205, and tech support has not yet resolved it.
No purpose-built diagnostic tool to quickly identify communication faults between outdoor unit and branch box in LG mini split systems; relying on manual wiring checks and unresponsive tech support.
49
0
Opp. Score
49
Severity
4High
Willingness to Pay
implied
Added
May 15, 2026
Workarounds Described
- manually checks wiring repeatedly
- relies on tech support phone calls for help
Implied Software Gaps
- Automated communication diagnostic tool for mini split systems that replaces manual wiring checks and waiting for tech support
App Concept
SplitCheck Pro
A mobile diagnostic app that connects to LG mini split systems via Bluetooth dongle to run automated communication tests between outdoor unit, branch box, and indoor zones. It pinpoints error 204/205 root causes (wiring, board, or configuration) and provides step-by-step fixes, reducing diagnostic time from hours to minutes.
Key Features
- Bluetooth/wireless connection to outdoor unit and branch box
- Automated communication loop test
- Real-time error code lookup with probable causes
- Wiring diagram overlay and continuity check guidance
- Technician notes and history log
Target Users: HVAC technicians installing or servicing LG multi-zone mini split systems at residential or light commercial sites
Revenue Model: $14.99 one-time app purchase or $4.99 per diagnostic session
Existing Solutions Mentioned
Tech support (phone/email)
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