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us Home & property emergencies bathroom exhaust fan dripping • vent dripping water • water from bathroom ceiling vent • condensation in exhaust duct • attic duct sweating • hidden moisture in ceiling • suspected bathroom ceiling leak • water near electrical fixture • dripping after shower • dripping when fan runs • dripping when fan off • humid bathroom condensation drip • backdraft damper stuck • duct disconnected in attic • venting into attic problem • shut off breaker bathroom • gfci outlet near water • ceiling stain around fan • water damage prevent mold

What to do if…
a bathroom extractor fan or vent starts dripping water and you suspect hidden condensation or a leak

Short answer

Treat it as a water-and-electricity hazard: stop using the fan, keep the area dry, and shut off the bathroom circuit at the breaker if anything is wet or dripping onto electrical parts.

Do not do these things

  • Don’t keep the fan running if water is dripping from the fan/vent or the surrounding ceiling.
  • Don’t touch the fan, light, switches, or the grille with wet hands or while standing on a wet floor.
  • Don’t open the fan housing or pull the unit down while it may be energized or wet.
  • Don’t ignore a sagging/bulging ceiling around the fan (water can release suddenly).
  • Don’t paint, caulk, or “seal over” damp staining yet.

What to do now

  1. Make the area safe. Put a bucket/towels under the drip and dry the floor to prevent slips. Keep kids/pets out of the bathroom for now.
  2. Stop adding moisture. Pause showers/baths. If it’s safe, crack a window or increase ventilation in nearby areas (not by running the wet fan).
  3. Document quickly. Take timestamped photos/video of the dripping point, any staining, and any ceiling swelling/soft drywall. Note whether it happens after showers or during rain/wind.
  4. Shut off power safely if anything electrical is wet.
    • If water is dripping from the fan/light area, turn off the bathroom circuit at the breaker panel.
    • If you have GFCI protection, remember it reduces shock risk but does not make a wet fan/light safe—keep the circuit off if water contacted electrical components.
    • If you cannot reach the panel without stepping in wet areas, don’t risk it — keep people out and get help.
  5. Do a quick “look only” check (no disassembly).
    • Mostly after showers / cold weather: often condensation collecting in cold ductwork.
    • All the time / getting worse / staining spreading: more suggestive of a plumbing or roof leak.
  6. If you can safely access the attic, do a brief visual check only.
    • Look for a sagging flex duct with water pooled in a low spot, uninsulated duct, a disconnected duct, or signs the duct dumps moist air into the attic instead of outdoors.
    • Look for wet insulation, wet framing, or dripping pipes above the bathroom.
    • If you see water near wiring/junction boxes, back out and keep the breaker off.
  7. Once electrical risk is controlled, start drying what you can reach.
    • Gently dry the fan cover area and wet drywall surfaces you can access.
    • Keep air moving and aim to dry damp materials promptly (ideally within 24–48 hours if you can) to reduce mold risk.
  8. Notify the right party now.
    • If you rent: contact your landlord/maintenance promptly and state: “bathroom exhaust fan/vent dripping water; possible duct condensation or leak; breaker turned off for safety.” Share your photos.
    • If you own: if it’s active/worsening or the ceiling is soft/bulging, call a plumber (possible supply/drain leak) or roofer (roof/vent leak). If any electrical fitting got wet, call a licensed electrician before turning the circuit back on.

What can wait

  • You don’t need to decide whether to replace the fan, upgrade ducting, or add insulation today.
  • You don’t need to open ceilings or remove insulation in a panic — stabilize and document first.
  • You don’t need to clean for mold while the area is actively wet; stopping the source and drying comes first.

Important reassurance

Water dripping from a bathroom fan is often caused by warm, humid air condensing inside a cold attic duct and then dripping back down. It can look identical to a real leak at first — treating it as an electrical safety issue until confirmed safe is the right approach.

Scope note

These are immediate first steps to reduce risk and prevent avoidable damage. A proper fix depends on whether the source is duct condensation (routing/insulation/termination) or an actual water leak (plumbing/roof), and may require a qualified electrician if electrics were exposed.

Important note

This is general information, not professional advice. If water may have contacted wiring or electrical components, keep the breaker off until a qualified professional confirms it’s safe. Drying promptly helps reduce the chance of mold.

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