HVACDiagnostics & Troubleshooting4HighField Technician$ implied

Intermittent short in HVAC system that blows fuses unpredictably, with no clear cause found after multiple part replacements over months.

Standard diagnostic tools (multimeter, component replacement) fail to catch intermittent electrical faults that occur only under specific conditions, like when the AC runs for extended periods or with solar panel interference.

Opp. Score

Severity

4High

Willingness to Pay

implied

Added

Apr 28, 2026

Workarounds Described

replaces parts (furnace control board, thermostat, contactor) hoping to fix short
uses multimeter to ohm out thermostat wire
checks ground wire for low voltage occasionally

Implied Software Gaps

Long-term continuous electrical monitoring tool that catches intermittent faults
Fault correlation with system operation and external factors like solar panel activity

App Concept

FaultFinder HVAC

FaultFinder HVAC is a smart diagnostic tool that continuously monitors voltage, current, and ground faults over weeks to catch intermittent shorts. It logs events with timestamps and correlates them with HVAC operation and external factors like solar panel activity, pinpointing elusive faults without multiple service calls.

Key Features

Continuous monitoring of voltage, current, and ground faults
Event log with timestamp and system mode (heating/cooling/fan)
Integration with solar inverter data to detect interference
Mobile app alert and summary report

Target Users: HVAC field technicians and service companies diagnosing tricky intermittent electrical faults in residential systems, especially those with solar panels or complex wiring.

Revenue Model: $199 per device (hardware) plus $9.99/month cloud subscription for data logging and analytics

Existing Solutions Mentioned

multimeter for ohming wiresreplacement parts (furnace control board, thermostat, contactor)

Part of App Idea

LeakSense Pro

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