Question about Carrier FB4ANF060 HVAC Electric Unit & AC Condenser

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CARRIER HVAC MODEL FB4ANF030 HEAT DOES NOT COME ON-FAN RUNS

THERMOSTAT SET, FAN RUNS, NO HEAT/ 2 UNITS, ONE UPSTARIS IN ATTIC THAT IS THE ONE THAT IS NOT HEATING, THE BIG ONE FOR DOWNSTAIRS RUNS AND HEATS/AIRCONDITINONS FINE ANY IDEAS FOR ME TO CHECK BEFORE I CALL A TECH AND SPEND $85 TO DO SOMETHING I COULD HAVE DONE?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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the dr
  • 447 Answers

SOURCE: Carrier Natural Gas Furnace/Air Conditioner, Model 518CXX036000MBAA

Is this a package unit??? Or is it inside the home?? How old is the furnace. The first thing to do is axcess the fan and see if it is controlled by a computer or its old enough to have a fan switch. Trace the red wire from the fan mtr that should take you to the fan switch

Posted on Dec 01, 2007

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wbwill
  • 68 Answers

SOURCE: Carrier Weathermaker SX model 58SX060-CC Blower runs all the time

Remove all power from the furnace, it is likely the brain in the furnace is need of being reset, from the battery replacement, why did you change the battery, was there an indicator telling you to change it?

Many times just removing all the power to the furnace will do the trick with a reset, if not let me know and we will go from there, but it sounds like the main brain is confused or bad, more likely confused, so try the power removed first.

Than let me know wbwill@sbcglobal.net

Posted on Nov 22, 2008

  • 38 Answers

SOURCE: Carrier Programmable Thermostat - E5 Code

Ok what you need to do is call your local service company and have a technician come out and check your Thermostat, its currently not able to read humidity probably due to a power surge

Posted on May 07, 2009

  • 38 Answers

SOURCE: Carrier Infinity Control Programming Issue

Open the flap, and press and hold the advanced button for 10 sec. you will be in the Installer setup screen. scroll down to the setup subfolder and select thermostat and it will be in there.

Posted on May 07, 2009

  • 38 Answers

SOURCE: Carrier Infiniti system, system maufunction on primary display

Call a Carrier service comapny and have them investigate further, when system malfunction comes up on the user interface usually there is a substantial problem.

Either that or the User Interface has gone bad and needs to be replaced

Posted on May 14, 2009

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2 Answers

2002 4 ton Bryant air conditioner shuts off, fan still runs but not cooling is problem in the controls in the attic or in the AC unit or both?


With a non heat pump it is a simple 24 volt AC control circuit. In the attic there is a relay that is actuated via the fan control wire directly from the thermostat. On the thermostat there is an auto/man switch that controls the fan. Manual the fan runs all the time. Auto fan turns on and off with the outside compressor.

If the system is not calling for cool and the fan continues to run the fan relay is sticking. common problem. Sometimes after running for several days the relay will stop sticking if not, replace relay.

If the system is calling for cool and the compressor stops I would still expect the fan to run until thermostat tells the A/C to off. Some compressor units include a safety switch or high-pressure cut-out switch A blocked internal valve bad control board or external fan in outside unit defective no air flow in outside unit.
High pressure cut out not good,

Suggest turning temp max cool and observe. If acceptable cool and the compressor runs without interruption all is good, except for the blower in the attic. Safely check relay in attic blower circuit.

Hope this helps.

thermostat-heat-cool-fan-on-czwsw2ci0layswcsyy3dj4dr-4-2.jpg

basic-thermostat-wiring-diagram-czwsw2ci0layswcsyy3dj4dr-4-5.jpg

Jun 28, 2017 | Bryant Heating & Cooling

1 Answer

My(38ycc030340)carrier heat Pump ac unit blows 5 amp fuse on board in handler in attic when switch stat to heat.


Miss wired or shorted low voltage wiring. Have you changed stat? Animal chewed wires at foundation wall or in attic?

Oct 10, 2016 | Carrier Heating & Cooling

1 Answer

Not showing outside temp, just shows 2 black lines


Is this at the thermostat? Have you replaced any batteries in it? If it is powered from the HVAC units, then is there a fuse blown for the power supply to the thermostat? You depending on where the HVAC units are located, you may need to vist the attic or crawlspace to check this out.

Nov 04, 2014 | Heating & Cooling

1 Answer

Condenser fan replaced one year ago, fan not turning but can hear motor


the answer to your problem is most likely the motor start capacitor. A AC motor can run in both directions. The start capacitor is used to cause the current to lag behined the voltage which determines the direction the motor will turn. Its posible the start and run capacitors are in one can. so changing one will change the other. However look for a wiring diagram. Do not asume that both capacitors are wired in properly. They may be fighting one another causeing premature failure.

Sep 18, 2012 | Carrier 38CKC036 Air Conditioner

1 Answer

I have a new Carrier HVAC system with a fancy EDGE thermostat. When I turn the system OFF at the thermostat, and set the fan to AUTO, hours later I will find that the fan is running and it's setting on the...


1. Open the door. 2. Press and hold the buttons underneath the heat and cool setpoints simultaneously (the two bottom buttons on the right) until the screen displays the reset reminders and 01 in the lower right corner. 3. Press the up arrow button until 01 changes to 07 with OF (fan mode) next to it. 4. To turn the fan on, press the rightmost lower button then press the up arrow button until the screen displays ON. To turn the fan off, press the rightmost lower button then press the down arrow button until the screen displays OF (off). 5. Press the done button. 6. Close the door.

Jun 06, 2010 | Carrier 36KCARMS Air Conditioner

2 Answers

Carrier 38CKC042300. oUTSIDE UNIT FAN WAS TURNING REAL SLOW. ac UNIT IS OFF BUT FAN TO OUTSIDE UNIT IS STILL TURNING. sHOULD NOT BE TURNING AT ALL WITH AC UNIT OFF


The outside fan may run if the unit is in defrost mode this is normal for most heat pumps it is there way of trying to keep the outside unit from staying iced over so the next time the unit runs it will have air flow through the coil and the ice will not be there to prevent air flow.

Jan 12, 2010 | Carrier 38CKC042 Air Conditioner

1 Answer

Outside unit runs continuously, even when system is off.


On A/C units, there is a low voltage line that leads to a contactor, which engages to close the high voltage circuit to the condensor unit. Over time, the accual contacts in the contactor can weld themselves together. Try shutting off your furnace breaker but leaving on the one for the outside condensor unit. If it still runs, your contactor probably needs replaced. Contact a licensed electrician or HVAC contractor and tell them you think your contactor is in need of replacement. Is a fairly simple and quick replace, but the contactor itself is not cheap.

Oct 10, 2009 | Ruud Central System Air Conditioner

1 Answer

No heat new thermostat


you have a short in the wireing.disconnect at air handler and hook-up short t-stat wire to t-stat,ifok chk wire to condenser

Jan 10, 2009 | Heating & Cooling

1 Answer

My Heat will not work on my upstairs unit. I am getting an E2 error code on my carrier thermostat. what does that mean?


the e2 code on a carrier comfort zone thermostat is indicitive of the external safety sensors which are located on your units ductwork in the attic. the e2 code are the hpt/ and lat sensor codes. the hpt is the heat pump temperature sensor and the lat is the leaving air temperature sensor. you can pull off the cover of the panel and behind it will actually give you all the fault codes associated with you carrier tsat.each sensor has a certain ohm rating and if its out of the range it will fail. now as to the reasons for failure, the indoor coil could be dirty, filters dirty, refrigerant charge incorrect.

Dec 03, 2008 | Carrier Heating & Cooling

3 Answers

Blower in Attic not running


inside unit has fan control relay , either on control board or can be separate ,except for the 24 volt transformer and the t-stat the units operate separately concentrate totally on the inside unit this is where the problem lies

Oct 23, 2007 | Ruud UAMB Air Conditioner

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