Damaged Dryer Vent Hose Troubleshooting & Fixes (From a 25-Year Vet)

    A veteran tech's guide to fixing a damaged or clogged dryer vent hose. Learn why your clothes are wet and how to prevent a dangerous lint fire.

    DIY Fix: $5–$20
    Pro Help: $150–$500
    Time: 15–120 min

    Quick Answer

    null

    Damaged Dryer Vent Hose Troubleshooting & Fixes (From a 25-Year Vet) visual diagram
    Visual guide for diagnosing key fob issues

    Common Symptoms

    Dryer taking longer than usual to dry clothes
    Clothes coming out damp or hot after a full cycle
    Laundry room feeling unusually warm or humid during dryer operation
    Burning smell (like burning lint) coming from the dryer or laundry area
    Visible lint accumulation around the dryer or vent opening
    Dryer frequently shutting off due to overheating
    Reduced airflow from the external vent hood

    Possible Causes

    Lint accumulation within the hose, restricting airflow (most common)
    Hose being crushed or kinked due to dryer movement or improper installation
    Tears or holes in the hose due to wear and tear, accidental damage, or rodent activity
    Incorrect type of flexible ducting used (e.g., vinyl instead of aluminum foil or rigid metal)
    Excessive length or too many bends in the flexible hose

    Step-by-Step Diagnosis

    1

    Step 1

    Unplug the dryer from the electrical outlet and disconnect the gas line if it's a gas dryer (turn off gas supply first).

    2

    Step 2

    Carefully pull the dryer away from the wall to access the back.

    3

    Step 3

    Visually inspect the entire flexible vent hose for obvious damage like tears, kinks, or crushing. Check for disconnections at both ends.

    4

    Step 4

    Feel along the hose for any blockages or stiff areas that might indicate substantial lint build-up by gently squeezing it.

    5

    Step 5

    Disconnect the flexible hose from the dryer and the wall vent. Shine a flashlight through it to look for internal obstructions.

    6

    Step 6

    Inspect the dryer's exhaust port and the wall vent opening for lint accumulation.

    Damaged Dryer Vent Hose Troubleshooting & Fixes (From a 25-Year Vet)
    Key fob troubleshooting and repair overview

    DIY vs Professional Costs

    Replacing a Torn/Kinked Hose
    DIY$25-50
    Pro$150-350
    Time1 hour
    Cleaning Out a Lint Clog (with brush)
    DIY$20-40
    Pro$125-250
    Time1-2 hours
    Re-attaching a Loose Hose
    DIY$5-15 (for new clamps)
    Pro$100-175
    Time30 minutes

    When to Call a Professional Hvac

    • If you smell gas (leave the house and call your gas company, then a tech).
    • If the blockage is not in the flexible hose but further down the line inside the wall or ceiling.
    • If you are uncomfortable working in tight spaces or are unsure how to safely handle the appliance, especially with gas lines.
    • If the problem persists after you've replaced the hose and cleaned the vents; it might be an issue with the dryer itself.

    Prevention Tips

    • Clean the lint trap before every load. No exceptions.
    • Use a semi-rigid aluminum duct for the connection, not vinyl or flimsy foil.
    • Ensure there's at least 4-6 inches of clearance behind the dryer to prevent crushing the hose.
    • Keep the flexible hose as short and straight as possible.
    • Inspect the hose and clean it out at least once or twice a year.
    • Check the external vent hood periodically to ensure the flap isn't blocked by nests, leaves, or snow.
    Damaged Dryer Vent Hose Troubleshooting & Fixes (From a 25-Year Vet) professional repair detail
    Professional key fob repair and programming

    Frequently Asked Questions

    Related Guides

    Need Professional Help?

    Find top-rated hvac experts in your area

    Find Local Pros