Question about Carrier 52PQ307 Wall/Window Air Conditioner

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My ac is carrier company window a/c its indicating {fl}


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  • syndicate Apr 03, 2009

    mode and ^ doesnt help. FL is still displayed...what to do?
    I have cleaned the filter...even the unit.

  • Anonymous Mar 26, 2014

    FL indicator means



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From the manual.
Message on the display(electronic models) E4 1. Failure in the inside temperature sensor E5 2. Failure in the outside temperature sensor FL 3. Dirty filter
To fix vaccume  (or wash your filter) then  hold down "Select"(or "Mode") and "-" (or "^") for 3 secconds.

Posted on Feb 15, 2009

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The service manual and thermostat cross reference says,

  1. Filter life management (just reminding you to check or change the filter.)
  2. Filter lamp(only on model with electrostatic and inferred filtering)
  3. Flood level sensor (Only displays if the drain is clogged)
If the drain is clean and you don't have inferred filtering,It's just a filter reminder.

(This above is depending on the type of thermostat you have)

Please rate this a fixya

Posted on Jan 30, 2009

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Posted on Apr 07, 2010

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I have this same problem but I think it is a flood warning. The bottom of the unit has water there and there doesn't seem to be much coming out of the drain. I will drain it and see what happens and tell you guys

Posted on May 11, 2010

  • rbdimayuga81 Mar 07, 2011

    FL message means that the Filter need to be cleaned. Clean the filter as per manufacturer's instruction. After cleaning the filter and reinstalling it, you need to reset the AC. While AC is ON, press the MODE and Arrow button simultaneously for 5 to 10 sec until "FL" message disappear and room temp is indicated. Then, turn-off the AC unit. Turn-on after 3mins and the "FL" mesage is gone.


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Please make sure that your ac unit is fully drained. If it is drained and the filters have been changed you should look about getting the unit serviced. Check out Air Condition West Palm Beach to help answer any other A/C questions you may have.

Posted on Apr 12, 2015

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MODE and DOWN ARROW for me

Posted on May 24, 2014

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

a 6ya Repairman 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 repair professionals here in the US.
click here to Talk to a Repairman (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

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TIMOTHY 714-334-1998

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