Question about Heating & Cooling

1 Answer

Air conditioner unit freezing up on inside of hour

Lennox H529-300 air conditioner unit freezing up on inside of house. I've cleaned it up and changed the filter, but it starts icing up again within 12 hours. It has been very humid outside lately.

Posted by on

  • mabxsupu Jul 13, 2010

    I can do this!!! Thanks!

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 821 Answers

Hello,please kindly follow the instructions below to fix your air conditioner,

Defrost the Unit

First thaw your unit by turning it off. Turn the breakers off to the unit to avoid short circuits. Tape a tarp or large trash bag under the unit to catch the water as the ice thaws. After the ice thaws, hand dry the unit and let it stand to dry for 24 hours. Inspect the unit to ensure it's dry before turning the power back on.

  • Step 2 FANS

    Verify the outside fan and inside fan units are working and turning. DO NOT check the unit by sticking your hand in them.
  • Step 3 FILTERS

    The first thing to check are the filters on the indoor unit. These should be changed every 3 months and can be purchased from your local home improvement store for a price of $3 to $15. Some allow air flow in only one direction. Make sure air is able to flow through the filters and into the unit.
  • Step 4 COOLING FINS
    There are cooling fins on the unit inside and outside. These are thin strips of metal that are easily bent. You want to be careful to NOT bend these.

    With the power to the unit off, use a medium pressure hose to wash dirt from the fins in the outside unit. Trim grass and remove debris from around the unit.

    Clean the inside unit using a lower pressure air line or a vacuum cleaner. Use a flashlight to check the fins. If light can pass through the fins then they are clean.
  • Step 5 COOLANT

    The main reason units freeze up is low coolant. Contact an HVAC technician to check the charge of your unit and add coolant if needed. A repair person can be found in your local phone book or newpaper ads.

    Keep an eye on the unit, if it starts freezing up again or looses it's cool air ability, then you probably have leak.
  • Step 6 REPAIR COSTS

    With any repairs you must weight your options. If you do all the cleaning yourself it'll save you from paying an HVAC tech which can run $80 just for cleaning the outside unit with a hose.

  • Read more: How to Repair a Frozen Up Central Air Conditioner Unit | eHow.com http://www.ehow.com/how_2313625_up-central-air-conditioner-unit.html#ixzz0tV0kIlbk

    FANS

    Verify the outside fan and inside fan units are working and turning. DO NOT check the unit by sticking your hand in them.


    FILTERS

    The first thing to check are the filters on the indoor unit. These should be changed every 3 months and can be purchased from your local home improvement store for a price of $3 to $15. Some allow air flow in only one direction. Make sure air is able to flow through the filters and into the unit.
    COOLING FINS
    There are cooling fins on the unit inside and outside. These are thin strips of metal that are easily bent. You want to be careful to NOT bend these.

    With the power to the unit off, use a medium pressure hose to wash dirt from the fins in the outside unit. Trim grass and remove debris from around the unit.

    Clean the inside unit using a lower pressure air line or a vacuum cleaner. Use a flashlight to check the fins. If light can pass through the fins then they are clean COOLANT

    The main reason units freeze up is low coolant. Contact an HVAC technician to check the charge of your unit and add coolant if needed. A repair person can be found in your local phone book or newpaper ads.

    Keep an eye on the unit, if it starts freezing up again or looses it's cool air ability, then you probably have leakage on the air conditioner,you will need to look for it and get it fixed if not it will continue to get frozen
    you can all back if you need additional information.
    wish you good luck,

    take care.









  • Step 3 FILTERS

    The first thing to check are the filters on the indoor unit. These should be changed every 3 months and can be purchased from your local home improvement store for a price of $3 to $15. Some allow air flow in only one direction. Make sure air is able to flow through the filters and into the unit.

  • Read more: How to Repair a Frozen Up Central Air Conditioner Unit | eHow.com http://www.ehow.com/how_2313625_up-central-air-conditioner-unit.html#ixzz0tV0w3mnO

    Posted on Jul 13, 2010

    1 Suggested Answer

    6ya6ya
    • 2 Answers

    SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

    Hi,
    a 6ya expert can help you resolve that issue over the phone in a minute or two.
    best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
    the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
    click here to download the app (for users in the US for now) and get all the help you need.
    goodluck!

    Posted on Jan 02, 2017

    Add Your Answer

    Uploading: 0%

    my-video-file.mp4

    Complete. Click "Add" to insert your video. Add

    ×

    Loading...
    Loading...

    Related Questions:

    1 Answer

    Lennox 10hpb


    change run capacitor on fan. or bad fan motor

    Jul 06, 2014 | GE Zoneline AZ38H12DAD Split System Air...

    1 Answer

    I have a Lennox CB29M Air Handler with an electric heater, which is used to heat the lower two rooms of my house. The handler unit is located in a mud room right behind the back patio. I'd like to get an...


    Any of these Lennox dealers can help you choose a compatible HS29 or HP 29 condenser and evaporator coil to match your system.

    http://www.lennox.com/locate/default.asp

    Jul 06, 2010 | Heating & Cooling

    1 Answer

    Heater,....


    First check your air filters and make sure the inside and outside coil are clean. If they are clean and you are getting good air flow over the coils then you probably will have to get the unit charged.

    May 03, 2010 | DeLonghi Trane 5t Rooftop Air Conditioner...

    1 Answer

    One of 2 Lennox AC units not working well.


    check the filters if it needs cleaning....or check the refrigerant level if it is below normal

    Aug 11, 2009 | Heating & Cooling

    1 Answer

    My unit freezes up after being on for few hours. please advise. thanx


    make sure your air Filter is clean your Evaporator being Dirty will cause freeze ups also
    after changing filter and unit is completely defrosted turn on indoor fan only and check airflow coming out of register if you do not feel much air coming most likely your coil is very dirty if Both Air Filter and Coil are Clean could be Low on charge those are the most common causes of freeze ups

    Jul 01, 2009 | Friedrich WallMaster WS12A10D Air...

    1 Answer

    Freezing up, home ac unit no air flow after running a while


    A low freon level in the unit can cause them to freeze up. Are the fins behind the filter clean?

    Jun 19, 2009 | Whirlwind FH-778 Air Conditioner

    1 Answer

    ∆ (delta) Test for a Lennox XC21036230 03 Air Conditioner


    have you looked inside the control panel? inside the relay boxes?

    tnx 4 asking directly,

    drcool

    Oct 25, 2008 | Heating & Cooling

    3 Answers

    Goodman Model CK60-1C with White Rogers mercury tube thermostat


    The contactor on the outside unit is sticking and must be replaced. The inside unit cycles off and the outside continues to run causing the refrigerant lines to freeze up.

    Jul 29, 2008 | Goodman CKL60AR60 Air Conditioner

    Not finding what you are looking for?
    Heating & Cooling Logo

    Related Topics:

    191 people viewed this question

    Ask a Question

    Usually answered in minutes!

    Top Heating & Cooling Experts

    paulcarew

    Level 3 Expert

    2454 Answers

    Dan Webster
    Dan Webster

    Level 3 Expert

    8220 Answers

    Donni Steen

    Level 3 Expert

    659 Answers

    Are you a Heating and Cooling Expert? Answer questions, earn points and help others

    Answer questions

    Manuals & User Guides

    Loading...