Find the real fault before you swap a part.
Stop guessing and part-swapping. ACLogics tells you what to measure next. Record the reading, and causes it clears get ruled out. Start it in the truck and keep following it in the basement with no signal.
Watch the causes drop off, one reading at a time.
Pick a common complaint and follow it from first check to the repair. Sample readings for illustration:
Action Required: Check return air filter and blower wheel cleanliness. Measure static pressure across evaporator coil.
Filter clean, total external static pressure is 0.42 in. w.g. (Normal airflow verified ~400 CFM/ton).
Action Required: Connect wireless gauges. Measure suction pressure, liquid pressure, superheat, and subcooling.
Suction pressure = 78 PSI (R-410A, Sat Temp 19°F), Liquid = 245 PSI (Sat Temp 82°F), Superheat = 38°F (High), Subcooling = 2°F (Low).
Action Required: Perform ultrasonic / electronic leak detection on indoor flare connections and condenser service valves.
Pinpoint leak detected at suction line Schrader core fitting.
Replace Schrader valve core with core-removal tool under pressure, recover/evacuate to < 500 microns, weigh in factory charge, verify 10°F subcooling.
Ask out loud. Get the next check back.
When your hands are covered in coil cleaner or you're balancing on an 8-foot ladder, typing is hazardous. Just tap the microphone and speak naturally.
- Talk like you would to a senior tech: Tap the microphone, say what you're seeing, and check the text before you send it.
- Questions about the check you're on: Ask "What should my head pressure be on a 95°F day?" without leaving the step.
- The why behind each step: Newer techs see why a check comes next, so every call teaches something.
Guided diagnosis FAQ
Does ACLogics replace the technician's multimeter and gauges?
No. You still take the readings with your own meters and gauges. ACLogics tells you what to measure next, and once your reading clears a cause it rules that cause out, so you stop chasing false leads.
What equipment can I diagnose?
Pick the system type that matches the equipment when you start, such as a split AC, furnace or heat pump. Not sure? Choose Unknown, or Other when none fits.
Can diagnostic histories be shared across our service team?
Yes. On a Team plan, managers see their techs' work by date and status and can open a diagnosis to review its summary and the checks that were made.
Fewer wasted parts
Know what to check next on the next call.
Download ACLogics on iOS and Android. Try for free — no credit card needed. Fix the real fault and show the homeowner why.