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Michael MartinezAug 8, 2025
What to do if Accutrol Monitor displays “WARNING face velocity below range” message?
- CCasey BrownAug 8, 2025
If the Accutrol Monitor displays a “WARNING face velocity below range” message, it indicates insufficient air flow. Check the tubing for any pinches or kinks. Ensure adequate air flow to meet hood requirements. Verify that the reference probe and hood probe are not blocked and are correctly connected. Note that the APM is directionally sensitive; reverse flow from the hood into the room can also trigger this message.

