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Wet furnace filter.

IdahoboundIdahobound Member Posts: 20,584 ✭✭✭
edited May 2018 in General Discussion
I know we have a couple pros here on the subject. Question is what causes a a furnace filter to be wet. I was changing my filter today as I do ever 30 days and noticed About half of it was wet. I have never experienced this. What do I need to do?
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    AlpineAlpine Member Posts: 15,054 ✭✭✭✭
    edited November -1
    Do you have a humidifier?
    ?The problem with socialism is that you eventually run out of other people's money.?
    Margaret Thatcher

    "There are three kinds of lies: lies, damned lies and statistics."
    Mark Twain
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    1911a1-fan1911a1-fan Member Posts: 51,193 ✭✭
    edited November -1
    quote:Originally posted by Idahobound
    Question is what causes a a furnace filter to be wet.




    it got water on it
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    WMClarkWMClark Member Posts: 821 ✭
    edited November -1
    If it's a high efficiency condensing furnace it would be a plugged up drain line or melted/cracked drain line inside the furnace. I had the plastic drain line inside my furnace crack from from years of heating cycles and had his problem at the start of the winter season.
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    reload999reload999 Member Posts: 3,080 ✭✭✭
    edited November -1
    I don't have an answer to your question, but thanks for reminding me to change my filter [:D]
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    BrookwoodBrookwood Member, Moderator Posts: 13,376 ******
    edited November -1
    I once owned a Yorkshire Terrier. Is your wet filter yellow? [:D]
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    IdahoboundIdahobound Member Posts: 20,584 ✭✭✭
    edited November -1
    quote:Originally posted by Alpine
    Do you have a humidifier?







    No
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    IdahoboundIdahobound Member Posts: 20,584 ✭✭✭
    edited November -1
    quote:Originally posted by 1911a1-fan
    quote:Originally posted by Idahobound
    Question is what causes a a furnace filter to be wet.




    it got water on it


    Don is that you
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    scooterdriverscooterdriver Member Posts: 1,143 ✭✭✭✭
    edited November -1
    Look at the coils and see if they are freezing up. If they are, it?s likely melting ice dripping onto the filter.
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    KnifecollectorKnifecollector Member Posts: 3,270 ✭✭✭
    edited November -1
    I'd guess a clogged condensation drain line.
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    remingtonoaksremingtonoaks Member Posts: 26,251 ✭✭✭
    edited November -1
    quote:Originally posted by Knifecollector
    I'd guess a clogged condensation drain line.


    Your guess would be correct
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    montanajoemontanajoe Forums Admins, Member, Moderator Posts: 58,027 ******
    edited November -1
    I'll assume you also have A/C with this unit;
    Clogged condensate drain line,
    Froze up coil-then thawed,
    screwed up fresh air intake,sucking in water,
    broken water line somewhere-that is getting into duct work and being recirculated through your system,or even running bacwards in the duct work into the filter compartment,

    see,isn't this easy? Good luck. Find it soon before it molds.
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    mjrfd99mjrfd99 Member Posts: 4,556 ✭✭✭
    edited November -1
    Inastalled many a system.
    What Joe above said!!

    I have to snake my drain line sometimes because of our s****y water.
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    mogley98mogley98 Member Posts: 18,297 ✭✭✭✭
    edited November -1
    My Bad I read thirty days you said 90

    Then you are probably throwing away money. A filter actually catches smaller particulates as it begins to collect. We use a differential pressure gauge to determine when we should change them.

    If you are using the cheap fiber filters every thirty days is appropriate, if you are using high end pleated filters you are tossing money in the trash.

    quote:Originally posted by us55840
    I change my furnace filter every 90 days and use the most high filtration type 3M filters.
    Why don't we go to school and work on the weekends and take the week off!
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    elect1mikeelect1mike Member Posts: 4,585 ✭✭✭
    edited November -1
    Up flow furnaces sometimes will get the filter wet as the air goes through the a coil if its a down flow I don't know other than things already posted
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    wpageabcwpageabc Member Posts: 8,760 ✭✭
    edited November -1
    Definitely condensation or drain problems.
    "What is truth?'
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    montanajoemontanajoe Forums Admins, Member, Moderator Posts: 58,027 ******
    edited November -1
    Update??? What'd you find???
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    ArbyArby Member Posts: 668 ✭
    edited November -1
    I had a clogged condensate drain line on two occasions ... both resulted in wet filters but wet floors as well. Since I started putting a cup full of Clorox down the drain line twice a year I have had no problems with wet filters or clogged drain lines.

    The new Trane units I had put in two years ago have float activated shut offs on the drain lines ...among other benefits by going with Trane A/C and heating units.
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    OakieOakie Member Posts: 40,519 ✭✭✭✭
    edited November -1
    Take a picture and post it for me if you can. I want to see what the system is and what it looks like. Are you in AC, or Heat mode. These few things will help me out. I will check back tomorrow. By the way, I'm sleeping at a holiday inn, if that helps[:o)]
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    IdahoboundIdahobound Member Posts: 20,584 ✭✭✭
    edited November -1
    quote:Originally posted by Oakie
    Take a picture and post it for me if you can. I want to see what the system is and what it looks like. Are you in AC, or Heat mode. These few things will help me out. I will check back tomorrow. By the way, I'm sleeping at a holiday inn, if that helps[:o)]


    I just noticed your reply. Can I text you pics?
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    spasmcreekspasmcreek Member Posts: 37,724 ✭✭✭
    edited November -1
    our 95% efficient central unit in the basement has a condensate pump ($40) on it and it pumps up to check valve to a drain line ....best thing we ever did to the basement was set up two Freidrich dehumidifiers with % settings, auto restart, and drain pump with lines and check valves up to the main drain....they come on for a short after initially getting level down to setting and has been a set and forget
    deal.... helps the whole house.....money WELL spent... one unit would have done the whole area but with the configuration of walls and stairs two evened things out easier
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