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I have a Carrier firnance that stopped running. I checked the furnace and the LED red light was flashing - 3 quick then 1 long.

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Reset the error by disconnecting your power supply for 10sec. and operate the unit. If it wont work check for defective thermistor.

Posted on Jan 12, 2009

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What do I do if red LED light stays on and my furnace (Carrier WeatherMaker 9200), does not start.


turn power off for 5 min to reset and check thermostat wiring the red wire should be connecting to the white try a jumper at the furnace

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Have a carrier 92 furnace. electric motor will not kick on...just hums. red light on circuit board flashes...help?


see this causes and fix it. God bless you
If the furnace won't run, check the electrical service panel for a blown fuse or tripped breaker. Also make sure the power switch on or near the furnace is turned on. Check the unit for a reset button and try it. Some units have a built-in breaker or fuse panel.
However you can have a missing 1 phase , test with the VOM, for to measure voltage. Or motor need repair for winding trouble,bearing.If you do not have enough experience call some electrician.
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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.
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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.

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ok this is going to sound funny but it seems as though the polarity is reversed going into your furnance. to correct this proiblem you first need to unplug the unit and where the cord goes into the furnance at that connection disconnect the two wires. Once theses are disconnected switch the wires .All you are doing is reversing the way the electricity flows into the circut board. I would wager that is the problem

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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

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).


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HI!!! Looks like your ignitor has stop working..change your glow ignitor and you should be fine..Good luck..

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1 Answer

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