Question about Carrier 38BRC036 Air Conditioner

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I have a carrier furnace and the led light is blinking 3 short then three long what is the code

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Code 33 LIMIT OR FLAME ROLL-OUT SWITCH IS OPEN - If open longer than three
minutes, code changes to #13. Flame roll-out switch requires manual reset.
Check for: - Dirty filter or restricted duct system. - Loose blower wheel.
- Defective blower motor or capacitor. - Defective switch or connections.
- Inadequate combustion air supply (Flame Roll-out Switch or fuse link open).
- Open Flame Roll-out switch, or fuse link. Manual reset or replace.

Posted on Nov 13, 2013

  • robert
    robert Nov 13, 2013

    code 33 LIMIT OR FLAME ROLL-OUT SWITCH IS OPEN - If open longer than three
    minutes, code changes to #13. Flame roll-out switch requires manual reset.
    Check for: - Dirty filter or restricted duct system. - Loose blower wheel.
    - Defective blower motor or capacitor. - Defective switch or connections.
    - Inadequate combustion air supply (Flame Roll-out Switch or fuse link open).
    - Open Flame Roll-out switch, or fuse link. Manual reset or replace.

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6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

Hi there,
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Posted on Jan 02, 2017

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Donni Steen

  • 687 Answers

SOURCE: Pressure, draft safeguard, or aux limit swtch did not close or re

The limit switches are two wires that go to a small disk about the size of a dime. There should be a tiny button between the wires. Find all the limits and push them to reset them. The draft safeguard is the one that is located where the flu pipe leaves the unit. Sometimes the limits are stubborn and it's hard to push them in. If you can't get it reset then the limit will need to be replaced but it can be bypassed temporarily by jumping the two wire together. Do no do this as a permanent fix. It can cause death.

Posted on Apr 03, 2009

myairfixer

Russ S

  • 11 Answers

SOURCE: I have a carrier furnace

Lucky for Light Emitting Diodes huh? (led)

I'm looking at a legend, on a Carrier furnace door, right now.

One long followed by two short is the "twenty one" code.

Here's what the door sticker says;

"EACH OF THE FOLLOWING CODES IS A TWO DIGIT NUMBER WITH THE FIRST DIGIT DETERMINED BY THE NUMBER OF SHORT FLASHES AND THE SECOND DIGIT DETERMINED BY THE NUMBER OF LONG FLASHES."

Look on your legend, inside the door of the furnace, to find the code diagnostic recommendation.

Make sure to read the codes several times and see the code from the beginning so you make sure the code starts with that digit.

Knowing this furnace means; the code diagnostic recommendation is just that, a suggestion. It will not tell a trained tech what to fix, only a starting point and tell-tale signs.

Code 21 is the gas valve lockout, and will not reset. May be a gas valve, relay or control board (most likely). Call someone.

It's complex for a trained person too, so if you're not familiar, this isn't something to make a mistake on.

Luck to you. Let me know how you get on.
myairfixer@gmail.com

Posted on Dec 23, 2010

pierre1811

Perry Putnam

  • 144 Answers

SOURCE: 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.

Posted on Mar 17, 2009

Anonymous

  • 70 Answers

SOURCE: Carrier Heater less than 5 years old--shutdown

sounds like the igniter is not glowing to start the flame let me know if this helps

Posted on Jan 11, 2009

Anonymous

  • 1 Answer

SOURCE: 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).


Posted on Feb 01, 2009

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A sampling of various failure 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 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.
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I have a carrier furnace and a error led code is one long then an immediate short folliowed by another short before the long


Lucky for Light Emitting Diodes huh? (led)

I'm looking at a legend, on a Carrier furnace door, right now.

One long followed by two short is the "twenty one" code.

Here's what the door sticker says;

"EACH OF THE FOLLOWING CODES IS A TWO DIGIT NUMBER WITH THE FIRST DIGIT DETERMINED BY THE NUMBER OF SHORT FLASHES AND THE SECOND DIGIT DETERMINED BY THE NUMBER OF LONG FLASHES."

Look on your legend, inside the door of the furnace, to find the code diagnostic recommendation.

Make sure to read the codes several times and see the code from the beginning so you make sure the code starts with that digit.

Knowing this furnace means; the code diagnostic recommendation is just that, a suggestion. It will not tell a trained tech what to fix, only a starting point and tell-tale signs.

Code 21 is the gas valve lockout, and will not reset. May be a gas valve, relay or control board (most likely). Call someone.

It's complex for a trained person too, so if you're not familiar, this isn't something to make a mistake on.

Luck to you. Let me know how you get on.
myairfixer@gmail.com

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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).


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Please give a rating it matters to fixya alot.

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