Question about Carrier 38CKC042 Air Conditioner

1 Answer

Furnace runs but no heat

The red LED blinks three times fast- then three times slow. The only way to stop the gan is to unplug the unit. ???

Posted by on

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.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 2,920 Answers

You need a new board. we just went through that with our heater which is electric and the board was bad.they also replaced our thermostat at the same time

Posted on Jan 20, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Led blinks three times and no ignition.


ignitor is bad or board not feeding it power or air switch is bad or draft motor not running fast enough

Nov 02, 2013 | Carrier Honeywell Gas Furnace Control...

1 Answer

On my Carrier Furnace the trouble shooting light has 3 fast blinks and 3 small blinks what does that mean?


Hi, this is a code telling you that something on the furnace has failed. You will have a chart with a list of codes and the amount of blinks fast and slow that will tell you what the problem is and what you can do to solve this. The chart may be glued to the panel, or on the control module it self. The code might be a 33. It might be a roll out switch has tripped and needs to be reset, or what ever, you will need to look for what it is saying. To reset when you find the problem, unplug power or shut off breaker, and turn back on in a minute or 2.Let me know the out come.
Shastalaker7
A/C, & Heating Contractor

Mar 30, 2011 | Air Conditioners

1 Answer

I have an amana dms 90904cms furnace ..the fan runs but no heat. I opened cover and saw the red led blinking 3 times code says open pressure switch. what does that mean?


Open pressure switch is when your vent motor comes on it has to get a certain vacuum pressure or it won't ignite furnace. There should be some little black hoses connected to vent motor and maybe into heat exchanger, running to these pressure switches. Pull hose off one end and make sure hoses are not kinked or some times if hoses have sag in them they can fill with water. Other causes are if venting is obstructed or pressure switch is defective, especially if it got moisture in it.

Jan 26, 2011 | Air Conditioners

1 Answer

My central heating is on lockout and the burner is with red light


A sampling of various codes on a furnace

Read one LED flash that stays on continuously to mean your furnace has no signal coming from the thermostat and will not operate. Turn the power off and check the thermostat for improper settings or connections.

Interpret one LED flash that blinks on and off to mean your furnace has locked out because it could not ignite after three tries, and must be reset. Interrupt power to your furnace for 20 seconds or lower the thermostat so your furnace does not try to heat, then reset the thermostat to the previous setting. After one hour of lockout, your furnace will automatically reset itself and try to operate as usual.

Decipher two LED flashes to mean the draft blower is not working, or your furnace has a short in the pressure switch circuit. Turn off the furnace power and repair a short or replace the pressure switch.


Read three LED flashes to mean your furnace has an open pressure switch circuit or it has an induced draft blower operating. Check the pressure switch hose of your furnace for blocks or an improper connection. Also, look for blockages in the flue, and tighten any loose wiring.

Translate four LED flashes to mean your furnace has a primary limit circuit open, possibly from loose wiring or blocked filters. Check and clean filters, tighten wiring and check the flue for blockages.

Interpret five LED flashes to mean your Goodman furnace senses a flame without a call for heat. This could be from a gas valve closing slowly or a burner flame lingering.



Read seven LED flashes as a warning of a low flame sense microamp signal. This could happen with a coated flame sensor or a lazy flame from poor gas pressure. Turn off the power and adjust the gas pressure according to the information on the rating plate.



See eight LED flashes as meaning an igniter circuit problem due to a bad igniter or an igniter connected improperly. Replace the bad igniter or check the ground wiring, making necessary corrections.



Decipher nine LED flashes to mean the high-stage pressure switch circuit will not close during a high-stage-induced draft blower operation. Your furnace may have a pinched or blocked pressure switch hose, a blocked flue or loose wiring.

Read continuous flashing on the LED to mean your furnace has a reversed polarity of 115 volts. Turn off the power and correct the wiring polarity after reviewing the wiring diagram.

Dec 02, 2010 | Air Conditioners

1 Answer

Fujitsu inverter air cond. Just stopped working properly. Model outdoor AOT30PMAL indoor unit AST30PBA-W. Code oper. Red led flashes fast continously green led (timer) repeats 13 slow flashes. After power...


It sounds like your inverter is at fault. You will need an inverter tester ( most good service techs will have one ) to prove that the output to the compressor is correct. If the inverter is okay then it will be the compressor at fault with a location error or it is simply seized. A common fault that caused this was the eev remained closed (coil failure ) and caused the compressor to over heat.

May 11, 2010 | Air Conditioners

1 Answer

Carrier Gas Furnace runs fine randomly stops blowing LEDs flash


That blinking light may be the diagnostic light. Count the blinks next time it fails. Carrier units will have two different blinks depicting the error code such as one blink followed by a pause than 3 blinks giving you an error code of 13. Then look at the wiring diagram, it will have an error code chart telling you where to start with your diagnosis. You already know that if you remove the cover it erases the error code, so look thru the small window first.

Nov 30, 2009 | Carrier XHB123D X/Y Series Heat/Cool Air...

1 Answer

Induced Draft Blower Not Blowing- 3 Blinks on LED


Your doing well just right. When the call for heat is on the draft motor gets a call from the board to come on. When this happens if no voltage is present at the motor then you ahve abad baord. Replace it.

Nov 28, 2009 | Air Conditioners

1 Answer

Weatherking WRKA heat not working control board


U need to supply more info.There will be a sticker on the furnace likely in the lower Fan Compartment which will have a legend that explains each error code...ie: 3 blinks = Pressure switch etc....and u will need to provide more info on how the furnace is operating (whats it doing ) when it stops working or just prior to that

Oct 16, 2009 | Air Conditioners

1 Answer

Coleman outdoor furnace/AC blower speed too fast


You are right slow for heat and fast for A/C. Here are the blower speeds black is high blue is med. and red is low if you have orange it would be med low. Look on the control board and see what color wire is connected to heat and let me know if you have something other then control board. You can take the wire that is on park and swap them around. ken

Jan 11, 2009 | Air Conditioners

Not finding what you are looking for?
Carrier 38CKC042 Air Conditioner Logo

77 people viewed this question

Ask a Question

Usually answered in minutes!

Top Carrier Air Conditioners Experts

Cindy Wells

Level 3 Expert

4761 Answers

yadayada
yadayada

Level 3 Expert

61249 Answers

Lawrence Oravetz

Level 3 Expert

7686 Answers

Are you a Carrier Air Conditioner Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...