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Gene Pitts Posted on Aug 03, 2011
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Carrier central AC/Heat system repeats "Replace

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Pete Norton

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  • Expert 121 Answers
  • Posted on Aug 03, 2011
Pete Norton
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Joined: Aug 02, 2011
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Try unplugging the unit and waiting a few which many times resets the board.

  • Gene Pitts Aug 17, 2011

    Thank you. I disconnected the 220vAC on the unit inside & reconnected in 5min, no change. With your suggestion I opened both 220vACs, inside & outside including the control PCbd plugin terminals, shorted the PCbd terminals with aluminium foil(to clear memory). Visually cked Pcbd, reconnected Bd,outside 220vAC & inside 220vAC. Unit full operational for 14 days(and counting). Your advice works. thank you.

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1answer

My carrier apu starts fine, on low ac it will stay running but the display goes to check apu engine. On high ac it will run for a few minutes and kill the engine. Could it just be a fuel filter issue?

Hi, I do not think a fuel filter will fix this problem. You may need to take this unit in for service. If the fuel filter was to blame. The engine would die at both fan speeds. More than likely The APU controller has identified a fault and shut the system down. I feel that the A/C high function is directly related to the engine shut down. Driving down the road (vibrations) can knock things loose, wiring can get damaged or its just wear and tear. You can remove the covers and visually inspect the connections. Look and see if anything looks loose, broken or over heated. You can also inspect the HVAV blower motor and speed resister. Specifically the wiring at the connector. Over heated wiring can melt and cause a short that can affect system operations. Please start here and write back. Good Luck.
tip

How to Reset Your Air Conditioner Filter Light

<span style="font-weight: bold;">Cabin Air Conditioner:</span><br /> <ol> <li>Press and hold down the Off button for 4 seconds.</li></ol><span style="font-weight: bold;">Carrier Air Conditioner:</span><br /> <ol> <li>Press the Reset Filter button to reset the timer that calculates the next air filter change after you have inspected / cleaned the indoor return air filter.</li></ol><span style="font-weight: bold;">Daikan Air Conditioner:</span><br /> <ol> <li>Press the Filter Clean Reset button to reset the CLEAN FILTER INDICATOR after you have inspected / cleaned the indoor return air filter.</li></ol><span style="font-weight: bold;">Frigidaire Air Conditioner:</span><br /> <ol> <li>To reset after cleaning the filter, press the "Filter Reset" button and the light will go off.</li></ol><span style="font-weight: bold;">GE Air Conditioner:</span><br /> <ol> <li>Turn the air conditioner OFF and unplug it.</li> <li>The air conditioner must be unplugged for the automatic filter clean timer to reset. Clean the filter.</li> <li>After cleaning, replace the filter and plug the air conditioner back in.</li></ol><span style="font-weight: bold;">Honeywell Air Conditioner:</span> <ol> <li>Press and hold the i button until the timer is displayed, followed by pressing the Up Arrow button (next to the Wake button)</li> <li>Press the Run Program button.</li></ol><span style="font-weight: bold;">Kenmore Air Conditioner:</span><br /> <ol> <li>To reset the filter indicator, press and hold the filter reset button for 3 seconds.</li></ol><span style="font-weight: bold;">Lexus Air Conditioner:</span><br /> <ol> <li>Without having foot on the brake, press the Start button twice to get to the IG-ON position.</li> <li>Then press and hold the "hard" OFF button next to the "hard" Auto button. Hold the OFF button for approx 5 seconds and you hear several beeps.</li></ol>or<br /> <ol> <li>Turn the engine switch to IG-ON mode.</li> <li>Push and hold the A/C OFF button for more than 4 seconds.</li></ol><span style="font-weight: bold;">Lexus 2008 Air Conditioner:</span> <ol> <li>Push the "INFO" button & touch "Maintenance".</li> <li>Touch the desired button Delete All: To cancel all conditions which have been input or Reset All: To reset the item which has satisfied a condition. If "ON" is selected, the system gives maintenance information with the "Information" screen when the system is turned on. If "OFF" is selected, the "Information" screen is disabled.</li> <li>Input the Notice of Date: The next maintenance date must be input.</li> <li>Now input the Notice of Distance: The driving distance until the next maintenance check.</li> <li>Delete: To cancel the date and distance conditions.</li> <li>Reset: To reset the date and distance conditions.</li> <li>Touch "OK" The screen returns to the "Maintenance screen.</li></ol><span style="font-weight: bold;">Lincoln LS 2001 Air Conditioner:</span><br /> <ol> <li>Press and hold the setup button above the radio until it says system check. NOTE: All the doors must be closed.</li> <li>Watch the system check when it goes to A/C filter hit the reset button.</li> <li>Hold down the reset button to confirm.</li></ol><span style="font-weight: bold;">Lincoln LS 2003 Air Conditioner:</span><br /> <ol> <li>Press the STATUS control to access the System Check function, the message center will display A/C FILTER XX% RESET FOR NEW.</li> <li>Press and hold the RESET control to set to 100%.</li></ol><span style="font-weight: bold;">Lincoln LS 2005 Air Conditioner:</span><br /> <ol> <li>Insert the key and turn the ignition to "Run" or "On." It is not necessary to start the engine.</li> <li>Press the "Status" button above the radio until the system display changes to "AC Filter."</li> <li>Press and hold "Reset" above the radio. The system will beep and the "AC Filter" display resets to "100%."</li></ol><span style="font-weight: bold;">Maytag Air Conditioner:</span><br /> <ol> <li>Press the "Fan" button 2 times, then press the "Mode" button 1 time and it will reset.</li></ol><span style="font-weight: bold;">Whirlpool Air Conditioner:</span><br /> <ol> <li>Push in the filter reset on the remote using a straightened out paper clip or similar.</li></ol>or<br /> <ol> <li>On the control panel, press and hold the Mode and the Up Temp Arrow buttons for 6 seconds.</li></ol>or<br /> <ol> <li>After having cleaned the filter just press the reset button located on the indoor unit behind the front panel to interrupt the flashing of the filter monitor indicator.</li></ol>
on Jun 17, 2011 • Heating & Cooling
0helpful
3answers

Fan doesn't work in heat mode it works on all other functions. Heat does come out but fan doesn't kick in. Outside unit is operating

AC inside fan doesn't come on AUTO - DoItYourself.com Community Forums

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0helpful
1answer

38ckc036340

If its a Carrier unit from what I could tell looking at their website, all the unit is , is a standard central AC unit

Not a heat pump

I’m happy to assist further over the phone at https://www.6ya.com/expert/robert_54ae41aaaffbab00

0helpful
1answer

I BOUGHT A USED HOME APPROXIMATELY 1000 SQ. FT. IT

quantity of gas alone does not make for cold air
to understand that it is necessary to understand how an air conditioner or fridge works ( ac, car ac , fridges , freezers etc all work on the same principle)
Simply put it is a heat transfer device where the heat of a room is transferred to outside the room
IT does this by allowing an extremely volatile liquid to evaporate ( being boiled off by heat in the room)
the gas is then collected by a compressor and recompressed back to a liquid
this process releases the heat back outside by the condenser and so the process is repeated until the amount of heat in the room reaches the temp set at the thermostat
Basic I know but it is sufficient to know that there is more than gas at work
if the compressor is inefficient ( worn , faulty etc) it cannot compress the gas properly and so instead of releasing liquid at the evaporator , it will be releasing gas which is not boiling off and removing heat
next is the thermostat
it controls the TX valve that regulates the amount of liquid that is allowed to enter the evaporator to collect the heat to be removed
next there is the condenser
if the fan is not working it will not remove the heat from that unit and so the compressor cannot do the job as it goes into over pressure and shuts down
Good advice is to get a second opinion from an accredited service technician, preferably a carrier service technician that has the technical knowledge of the make to be able to properly diagnose and test each component of the system
every system is repairable if the parts are available but the deciding factor is the repair cost against the energy saving costs and parts availability of a new unit so get quotes and then decide the action to take
4helpful
1answer

Maintance Monitor states Code B 12. How to reset.?

Got B12 service minder.
B12:
B:
Replace engine oil and oil filter, Rotate tires, Inspect front and rear brakes, Check parking brake adjustment, Visually inspect tie rod ends, steering gear box, and boots, Visually inspect suspension components, Visually inspect driveshaft boots, Visually inspect brake hoses and line (including ABS), Visually inspect all fluid levels and condition of fluids, Visually inspect exhaust system, Visually inspect fuel lines and connections

1:
Rotate tires
2:
Replace air cleaner element (If you drive primarily in dusty conditions, replace every 15,000 miles (24,000 km).
Replace dust and pollen filter
If you drive primarily in urban areas that have high concentrations of soot in the air from industry and from diesel-powered vehicles, replace every 15,000 miles (24,000 km).
Inspect drive belt

Hold trip reset button down then turn key on but do not crank engine over light maint. light will go off after a couple of second

THIS IS HOW YOU RESET IT HAPPY HOLIDAYS
0helpful
1answer

Unit turns on but furnace won't come on. AC works,

see if your t-stat is calling for heat take a jumper wire from terminal r to w on the board if the heat comes on replace the t-stat
0helpful
1answer

I turned off the heat on a central heat/ac system this morning to access a sump pump that is located below the furnace system. I fixed the sump pump and now the heat will not come back on. Is there a reset...

you might check the 24 volt transformer or thermostat that is where i would start try your a/c to see if it works if it does then you have a problem inside your unit
1helpful
2answers

My heat unit will not blow hot air unless we go outside and hit a button on the back bottom of the unit. Once we do that it will blow hot air for that cycle. when it is time for it to come on it is cold...

If it does not have a furnace or heating elements for heating, then it is a heat pump, which is rare for a central AC system, but makes sense of the fact that it blows warm air when you reset the pressure switch, which may indicates freon pressure charge problem if your AC system has a reverse valve and uses freon to for heating (heat Pump).

Do you get heating when outside unit runs? if you do, check freon pressure levels and top up to required pressures. The button you depress is a pressure reset switch ... that is if your AC system is a heat pump ... which, as pointed above, it is not common for central ACs.
0helpful
1answer

I have an older Day & Night / Bryant / Carrier downdraft central heater. It was a heat only unit but has an aftermarket AC unit added onto it. I have the latest PCB that adds the AC cooling feature...

4 wire will not work properly.

You will need a 5 wire minimum.

Blue = common
green = blower fan
red = hot
white = furnace
yellow =AC

The wire from the thermostat to the airhandler would be like above.
The wire from the thermostat to the AC (via the airhandler) would be blue and yellow.
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