Maintenance Guides / Safety & Electrical

Test radon mitigation manometer

Difficulty: easyTime: 10 mins

Why it matters

Radon fans fail silently; manometer is only indicator system is working.

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How to do it

  • 1

    Locate manometer on radon vent pipe.

  • 2

    For U-tube: observe liquid level; one arm should be lower.

  • 3

    For digital: read pressure differential (0.02-0.1 in WC).

  • 4

    If level or zero reading, fan has failed.

  • 5

    Call radon mitigation specialist immediately.