Guided Diagnostics
8-12 min · 7 steps

Glycol Pump: Noisy / Cavitating

Trace gravel-like pump noise and swinging flow to a suction/NPSH problem before it wrecks the pump.

First step

Is the suction strainer clean and the suction valve fully open?

No
Yes

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.

© 2026 Cool Tech IQ — Refrigeration Solutions Simplified.

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.