Question about Carrier 38CKC042 Air Conditioner

2 Answers

Fan running but no heat

Carrier Furnace Model#40AQ030300BB

Any help is appreciated. Could it be the heat coil or relay?

Posted by on

2 Answers

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 11 Answers

Most likely heat sequencer. Fan relay will run even if this is out. check if you have continuity in the coils first.

Posted on Feb 14, 2009

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Governor:

    An expert whose answer got voted for 20 times.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 144 Answers

It could be the circuit board, relay, heat strip coil or limit. If you have the fan switch at the t-stat in auto and the fan is running constantly it's probably a high temp limit that tripped. Was your filter clean or dirty? If you had a dirty filter and/or A/C coil it will restrict air flow and cause the furnace to overheat.

Posted on Jan 18, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Why won't my carrier furnace come back on?model number 58rav095.It was running and heating,but makes a horrible noise on start up.Is it the motor going out?


If the noise is coming from the fan coil unit then it could be the blower motor. If the bearings are failing it will make noise on start up and run. But after a period of time it will overheat and the overload protection switch will lock it out to keep it from running until it cools down.

Mar 10, 2015 | Carrier Air Conditioners

1 Answer

The line is frozen and the fan will not shut off. How do I turn the fan off?


Shut off the electric to your furnace.

the reason that the line is frozen is because of one two things:
First there is enough air passing over the A coil on your furnace.
Could be dirty filters - closed vents- furnace fan will not run/ stops and starts (bad motor).
Second the charge on your a/c unit is low.

John

Jun 24, 2014 | Carrier XHB123D X/Y Series Heat/Cool Air...

2 Answers

I have a Carrier 58PAV model furnace and the blower is not engaging when I turn either the furnace or AC on. It worked fine last weekend. I have powered the unit off and let it sit for 5 minutes and then...


The only thing you can do at this point is
  1. Hookup a volt meter to the power lines running to the blower motor
  2. Turn the a/c on
  3. You should have voltage on at least 1 wire.
  4. Most motors have multiple speeds so you must check (red - blue - black) wires. My suspicion is that your motor is done.

Jun 26, 2011 | Carrier 38CKC042 Air Conditioner

3 Answers

Jan 12, 2010 - My air handler fan (american Standard #TWE065E13FBO) works during a/c operation but not during heating operation. Checked continunity through the the thermo sw and throught the heating coils...


Hi,
You need to check if the air handler fan running.Suppose if you donot see it then, check to see if the fan on the outside unit is running. If the fan on the outside unit is not running either, check to make sure that the breakers for the furnace/air handler and the air conditioner are on. Also if the breaker is not tripped, then the problem may be your thermostat, the furnace/air handler control board, or the wires between the furnace/air handler and the thermostat.

Let us know if you need further assistance.
Thanks for contacting Fixya.com

Jan 12, 2010 | Air Conditioners

1 Answer

Furnace runs OK, but blower runs again a few seconds later


Could be a defective thermostat in the plenum.
When a gas furnace shuts down the fan(blower) will run until the plenum cools to the safe range. Usually 1 and 1/2 minutes.
Intermittent operation is a defective thermostat or relay.

Mar 11, 2009 | Carrier Air Conditioners

3 Answers

3 amp fuse blows on a carrier 58mcb furnace board


Hi!!! Does your ac unit work fine?If not check your low voltage problem..You have a low voltage problem check the wire going out to your condensor make sure that they are not touching..Good luck..Check low voltage wires..short in progress..

Jan 04, 2009 | Carrier 52CQ-312-4 Comfort Series Heat...

2 Answers

Air conditioner/furnace squirrel cage fan remains running when th


Ensure you don't have a short in your therm wires. Disconnect them, if the furnace continues to run, you have a lockout problem at your furnace. When the motor on the fan fails, it wont run. Check for led codes on the control board. If you don't have led codes, turn off the power to the furnace at the breaker, and watch the unit. If nothing happens, connect the thermostat. If nothing happens still call for heat. Let the therm run through it's cycle, and if the bower runs continuous again, let me know we can walk through that situation.

Dec 05, 2008 | Ruud Central System Air Conditioner

1 Answer

Model number for Carrier furnace with issue for blower 5 minute off delay


I believe that this model number is for an air conditioner evaporator coil. This unit is probably directly attached to your furnace. The Model number for the furnace will be located in the compartment where the flames can be seen. It will be on a sticker or plate that contains lots of other information too like BTU/h, Volts etc...


The number you gave me gives me this info:
Cased air conditioning evaporator coil.
3 Tons
Horizontal application

Jun 27, 2008 | Carrier 38CKC042 Air Conditioner

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

441 people viewed this question

Ask a Question

Usually answered in minutes!

Top Carrier Air Conditioners Experts

Cindy Wells

Level 3 Expert

4753 Answers

yadayada
yadayada

Level 3 Expert

60667 Answers

Lawrence Oravetz

Level 3 Expert

7565 Answers

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

Answer questions

Manuals & User Guides

Loading...