Question about Heating & Cooling

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Where is my a/c filter?

This may be impossible to answer without seeing first hand, but I'll give it a try. I recently moved into a home that has central air. It's a pretty old unit (circa 1983?), up on the rooftop. BDP (Carrier) model 585CJ030050. Yes, it is old and needs to be replaced, but let's put that aside for now. I know the filter must be due for cleaning and/or changing. But I can't find the filter! First I checked the intake -- the only large vented opening inside the house. I removed the vent cover, and it's just big empty space... no place for a filter, nothing! So I went up on the roof, looking to see if the filter was in the rooftop unit. Nope. Every side panel seems permanently bolted on, and I couldn't find anything that moved or lifted out of the way. Am I missing something obvious? I'd hate to pay for a service call just to locate the filter, but I'm almost to that point!

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  • draccy Jun 14, 2008

    Thanks -- found it! It was well-camouflaged!

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  • Master
  • 828 Answers

If your rooftop unit is self contained with no pipes leaving it except the condensate drain line there should be a narrow removable panel to access where the filters are located. If you have three pipes exiting the roof top unit two will go to an air handler located in the attic of the home. The filters will be located in the air handler.

Posted on Jun 13, 2008

  • James Helmer
    James Helmer Jun 14, 2008

    It's nice to be needed. You are welcome.

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1 Answer

I am trying to clean the air filter and cannot find it. I don't know what it looks like.


Would love to be specific; but without knowing the make and model of A/C that you have makes it rather difficult.
If you could provide that information I'll see if I can provide a better answer.

May 27, 2015 | Filter Heating & Cooling

1 Answer

How do you make your old wall air conditioners blow refridgerated air again?


I'm pretty sure those work just like the AC unit in a home or car/truck/SUV. If they are low on Freon the cooling unit (compressor) will not engage...so the air that it IS blowing is just recirculated air (the air from the room). Try looking for a HVAC company in your air...see if they can give you a (free) estimate. If it's not the Freon, then it's possible it could be the compressor is bad.
Good luck!
Jason

Oct 04, 2014 | Heating & Cooling

1 Answer

I don"t know what model


If the filter looks like metal mesh, you can clean it in a tub of soapy water. If it looks like cotton, you'll need to get a new one. You can pick one up at Home Depot et al. Either bring in the old one or get the measurements of it to give to the salespeople.

Aug 22, 2011 | Heating & Cooling

2 Answers

My central air unit comes on but it's not cool and


to me it sounds like filter are dirty, need to be cleaned or replaced, home systems, packaged or otherwise are hermetically sealed and should not need freon recharge. Always start with airflow and/or unit being set too low. An AC unit of any type will build ice if a) the filter is plugged up and can't move enough air, b) it has been run without the filter, clogging the coil, again, not moving enough air, c) setting an AC unit below 68 degrees F will almost ALWAYS cause icing, and d) running a standard AC when it's warm inside and cold outside (unless equipped for "low-ambient operation"). When in doubt, a bit of maintenance(thorough cleaning) by someone with AC skills can cure a b, common sense will cure c d.

Reply

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Jun 23, 2011 | Goodman CKL42AR42 Air Conditioner

1 Answer

Fan outside is blowing but nothing comming out of vents


Without knowing more information here are some quick checks. First check the return
vent and filter to see if it is blocked or clogged as well as the vents to see if they are open as well. I have seen filters in two locations in one home.

Second, if your thermostat has a "FAN"
setting, then try this and see if anything happens. If not then several things control the
fan itself. The fan relay, and the limits inside the unit.

The fan should turn freely by hand WITH ALL POWER OFF TO UNIT FROM ALL SOURCES.
If it is hot then chances are it has failed, If it is cool but turns freely by hand then I would
suggest replacing the capacitor first if there are no obvious broken wires or such.
Discharge cap to chassis and replace only with exact microfarad (MFD) ane equal or higher voltage.

Feb 26, 2011 | Heating & Cooling

1 Answer

How may I obtain or download an owners manual or intallation instructions?


Hi,
For a competent expert to be able to answer your problem, you will need to givea specific make and model of your unit.
Also include as much as possible about what you have already tried to do toresolve the problem along with exactly what is not working or what the unit isnot doing that it is supposed to do.
This will help us experts to be able to give you the correct advise the firsttime, without having to guess so much as to what is actually happening.

Thank you!

heatman101
ll

Sep 26, 2010 | Heating & Cooling

1 Answer

I have a rheem ac. the fan motor quit. the replacement has 2 xtra wires. howm do i hook it up


Hi,
Without knowing what was there and what you are trying to install exactly it is impossible to give a definite answer...
My feeling that you are replacing a single speed motor with a multispeed motor and that the wires are just extra speeds... if so hook up the black wire, white, and browns,and tape of the other colored wires...
heatman101

Sep 20, 2010 | Heating & Cooling

2 Answers

Air conditioning fan won't start unless I move the blades to give it a "jump start". Is this a capacitor problem?


Yes it is you may want to try to oil the fan motor with WD 40 to see if it will turn without it but it is most likely time to replace the fan motor.

Sep 28, 2009 | Goodman CKL42AR42 Air Conditioner

1 Answer

Cleaning


Hi, There are so many different types of units that it is really hard to answer this question. If you have the manual it may help. The filter can probably be removed without taking the face plate off. The filter may be all that needs cleaned. It usually slides up out of the face plate. Clean it with soap and water and replace it. The face plate its self may have some screws holding it on. Many of them just come off after removing the screws. Others pop off from the bottom first, some from the top. If this is a unit still being sold, You could go to the store and have someone there show you how to take it off. Home Depot usually have some helpful people that may just show you how a few of them come off. That may help you to understand more about what you need to do to get it off. You could ask a friend, relative or neighbor to give you a hand. Usually two minds work better than one on such maters. I hope I have helped you. kstfas

Sep 19, 2007 | Heating & Cooling

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