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Guided Diagnostics
10-15 min · 7 steps

VRF: High-Pressure Trip

Work a VRF outdoor high-pressure trip — airflow, valves/charge, indoor flow, or a false sensor.

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First step

Are the outdoor fans running at the right speed with a clean coil and clear airflow (no hot-air recirculation)?

No — fan/airflow problem
Yes — fans & coil good

This is a preview of the first step. Run the full interactive diagnostic free — it walks you all the way to the likely root cause.

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For qualified refrigeration technicians. Always follow manufacturer procedures and local codes. R-290 (propane) and other flammable refrigerants require A3-rated tools and safety practices.