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Guided Diagnostics
10-15 min · 7 steps

Chiller: Centrifugal Surge

Diagnose centrifugal chiller surge — lift, low load, vanes/VFD, or sensing.

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First step

Is the condenser pressure (lift) high?

Yes — high lift
No — lift normal

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.