Question about Carrier 38CKC036 Air Conditioner

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Ignition proving failure

Carrier furnace Model #58PAV. I cannot find this on your list of products. Has an led code 34. We follow the instructions on the door, put it back together and it works fine for a while. This happens about every other month and I need to get it fixed once and for all. Its about to get very cold outside and I don't want to spend another winter in a freezing house.

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  • Anonymous Oct 27, 2008

    It means ignition proving failure.

  • Anonymous Dec 18, 2008

    I have the same problem. Any ideas?

  • cassleys Dec 21, 2008

    Furnace attempts start but more often than not won't stay lit and then code 14 shows up. Flame sensor cleaned with a scotch brite pad and reinstalled. It's really cold here right now and I'd like to get this fixed as soon as possible.

    Thank you


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Is unit a two pipe system? if it is have you tried removing the black cap opposit the combustion pvc pipe? If you remove the cap, and furnace stays check for an obstruction in intake pipe.
If that isnt the problem check the condensate drain system.

Posted on Jan 10, 2009

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Can you give me an idea what code 34 represents?

Posted on Oct 21, 2008

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I have a carrier furnace the control board keeps coming up with differ t led coxes ifiI reset it it works a couple times then flashes a new code had four different codes come up so far 21 22 31 34


Have to know the model and serial of the furnace.
locate code list usually inside or on the back of a door.
Operation sequence= call for heat--inducer blower motor--makes pressure switch--signals board to bring on hsi--after a set time gas valve opens and you have ignition--main blower motor comes on after a set time

Feb 05, 2014 | Air Conditioners

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

1 Answer

What are the carrier 8000ts led error codes?


They are listed inside the front panel of the main unit.

LED CODE

EACH OF THE FOLLOWING STATUS CODES IS A TWO DIGIT NUMBER WITH THE FIRST

DIGIT DETERMINED BY THE NUMBER OF SHORT FLASHES AND THE SECOND DIGIT BY

THE NUMBER OF LONG FLASHES.

STATUS

11 NO PREVIOUS CODE - Stored status code is erased automatically after 72

hours. On RED LED boards stored status codes can also be erased when power

(115 VAC or 24 VAC) to control is interrupted.

12 BLOWER ON AFTER POWER UP (115 VAC or 24 VAC) -Blower runs for 90

seconds, if unit is powered up during a call for heat (R-W closed) or R-W opens

during blower on-delay.

13 LIMIT CIRCUIT LOCKOUT - Lockout occurs if the limit or flame rollout switch is

open longer than 3 minutes.

- Control will auto reset after three hours. - Refer to #33.

14 IGNITION LOCKOUT - Control will auto-reset after three hours. Refer to #34.

21 GAS HEATING LOCKOUT - Control will NOT auto reset.

Check for: - Mis-wired gas valve -Defective control (valve relay)

22 ABNORMAL FLAME-PROVING SIGNAL - Flame is proved while gas valve is

de-energized. Inducer will run until fault is cleared. Check for:

- Leaky gas valve - Stuck-open gas valve

23 PRESSURE SWITCH DID NOT OPEN Check for:

- Obstructed pressure tubing. - Pressure switch stuck closed.

24 SECONDARY VOLTAGE FUSE IS OPEN Check for:

- Short circuit in secondary voltage (24VAC) wiring.

31 PRESSURE SWITCH DID NOT CLOSE OR REOPENED - If open longer than

five minutes, inducer shuts off for 15 minutes before retry. Check for:

- Excessive wind - Proper vent sizing - Defective inducer motor

- Low inducer voltage (115VAC) - Defective pressure switch

- Inadequate combustion air supply - Restricted vent

- Disconnected or obstructed pressure tubing

- Low inlet gas pressure (if LGPS used)

If it opens during blower on-delay period, blower will come on for the selected

blower off-delay.

33 LIMIT CIRCUIT FAULT - Indicates a limit, or flame rollout is open. Blower will

run for 4 minutes or until open switch remakes whichever is longer. If open

longer than 3 minutes, code changes to lockout #13. If open less than 3 minutes

status code #33 continues to flash until blower shuts off. Flame rollout switch

requires manual reset. Check for: - Restricted vent

- Proper vent sizing - Loose blower wheel - Excessive wind

- Dirty filter or restricted duct system.

- Defective blower motor or capacitor. - Defective switch or connections.

- Inadequate combustion air supply (Flame Roll-out Switch open).

34 IGNITION PROVING FAILURE - Control will try three more times before lockout

#14 occurs. If flame signal lost during blower on-delay period, blower will come

on for the selected blower off-delay. Check for: - Control ground continuity

- Flame sensor must not be grounded

- Oxide buildup on flame sensor (clean with fine steel wool).

- Proper flame sense microamps (.5 microamps D.C. min., 4.0 - 6.0 nominal).

- Gas valve defective or gas valve turned off - Manual valve shut-off

- Defective Hot Surface Ignitor

- Low inlet gas pressure

- Inadequate flame carryover or rough ignition

- Green/Yellow wire MUST be connected to furnace sheet metal

45 CONTROL CIRCUITRY LOCKOUT Auto-reset after one hour lockout due to;

- Gas valve relay stuck open - Flame sense circuit failure

- Software check error

Reset power to clear lockout. Replace control if status code repeats.

If status code recall is needed, briefly remove then reconnect one main limit wire to display

stored status code. On RED LED boards do not remove power or blower door before initiating

status code recall. After one status code recall is completed component test will occur.


Thanks for Choosing FixYa.


Kelly

Oct 05, 2010 | Air Conditioners

1 Answer

Gas valve lockout


It means that the furnace isn't igniting and for safety the control board is preventing the gas valve from opening. Turn off the power to the furnace for a few seconds then observe what the furnace does in heat mode. Some furnaces will run the blower for a minute after you power it back up. After that see if the furnace tries to come on. If you are still getting the code then one of you high temp limit or roll out switches has tripped. Now is the time for a service tech. Make sure that you check you filter and air flow too. Low air flow means the furnace may be over heating.
The other thing is the hot surface igniter. Look closely at it with the power off. Do you see a white spot on the element or a crack. If so the HSI is bad. It's an easy replacement but DO NOT touch the carbon element with your fingers and be very careful handling it as it is EXTREMELY fragile.

Mar 17, 2009 | Carrier 38BRC048 Air Conditioner

1 Answer

Furnace wont run


First of all when you flip the switch, it goes thru a startup sequence. THEN it turns on the Igniter (notice the red glow). Then the gas turns on.

Now at this point check the idiot light and it should be giving you a code of 34. That 34 (3 shorts 4 longs) says that there was a problem igniting the furnace. After it cycles thru at least 4 times and fails to ignite all the blowers, then is when you get a code 14 (1 short 3 longs)

NOTICE what's happening with ALL the burner Tubes each time it attempts to ignite. If only one or two are running....then this is your problem.
To fix all you do is take out the burner Tubes, look for debris, blow them out (blow from the front where all the jets are), and replace them in sequence from left to right (the tabs overlap).


Jan 23, 2009 | Carrier XHB123D X/Y Series Heat/Cool Air...

2 Answers

Carrier Weathermaker gas 8000 will not ignite


Your hot surface igniter may be bad. It may be cracked which would prevent it from starting the burner flame.

May 21, 2008 | Air Conditioners

1 Answer

Ignition failure


THE AUTOMATIC IGNITION IS TIMMING OUT BECAUSE IT WILL NOT LIGHT PROBABLY A BAD THERMOCOUPLER TRY TO LIGHT IT MANUALY

Jan 13, 2008 | Carrier XHB123D X/Y Series Heat/Cool Air...

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