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Red flashing light 3 times and the furnace will not start.

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Have you done the basics? You need fuel ... and electricity to make this device operate. You say the light blinks three times... I guess you have electricity. What about fuel? Do you have? Is it on? Can it get to the burner (filter issue)? Control have electricity?

Next you have to have an 'order' for the device to come on ... are you calling for heat through the thermostat? Is this a forced air device or hot water base board device or other type???

I would check for a reset button somewhere on the device ... press it. If no results, I believe I would turn the power off to the device ... wait for a minute and turn it back on. Try again. If you are in the USA, there should be a emergency shutoff switch near by, probably red in color. If not ... you may have to go to your power panel to find a way to secure power to the device.

This is general information I offer to you to help you solve your own problem. It is hard to go much further ... you don't say anything about the make or model of your furnace (your question is listed in the Air Conditioner section, by the way) nor the kind of fuel you use.

One more suggestion ... have you googled the make and model of your burner for trouble shooting suggestions? If you have a light that blinks three times, my thought might be that there is a logic circuit on your burner that is telling you the answer to the problem. If you can find your manufacturers website troube shooting section, there is very likely a chart there that tells you exactly what three blinks mean.

One more final suggestion ... Repair may be beyond your ability, your fuel supplier has vested interest in your well being, you can always call them for assistance in the repair department for your device.

Thank you for your interest in FixYa.com

Posted on Oct 03, 2010

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Error code= two red flashes, lockout/ no flame


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cause this fault. 2 RED FLASHES: This indicates that thenormally open pressure ... The furnace will lock out for one hour and then restart. 7 RED FLASHES: This fault code indicates that the flame could not be established. This no-light ... problem. Bothheating and cooling operations will be affected. Check

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My Xenon high efficiency furnace has a red blinking led light that blinks 4 times and my furnace will not light. What could be the problem?


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We have a 1998 frigidaire furnace. M#FG6RA 072C-12A. It has a mind of its own! there is a red light that flashes 3 times.


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Intertherm furnace model # MMHB-070ABHR-06 red light blinks two times


Number of flashes mean different things for diff models. The meanings of those flashes should be posted somewhere on the unit; usually inside front of the bottom service panel. Though you can't truly diagnose a problem by number of flashes they can give you an idea of where to look for a problem. There are a ton of videos and how-to's about furnaces on youtube by real service techs. Most modern furnaces have basically the same set-up and features so don't worry about your paticular brand; but of course that would be the best place to start looking. You could start here to familiarize yourself with your brand of furnace:

http://www.youtube.com/results?search_query=Intertherm+Gas+Furnace+&oq=Intertherm+Gas+Furnace+&gs_l=youtube.12...62316.62316.0.63907.1.1.0.0.0.0.202.202.2-1.1.0...0.0...1ac.Ko9QBdxK6OM



And then here:


http://www.youtube.com/results?search_query=gas+furnace+won%27t+light&oq=gas+furnace+won%27t+light&gs_l=youtube-reduced.3..0.5619.10061.0.11544.11.5.0.6.6.1.741.1982.0j1j2j5-1j1.5.0...0.0...1ac.1.5-0zJyxNMEo



Hope this helps.

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York Diamond 90 furnace blows cold air


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I have a Coleman/Evcon furnace model #DGU08016UB that has a concern. In my attempt to check my furnace before we need it for the winter; the following condition occurred. Condition: Flashing code of...


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1 Answer

York gas furnace doesn't come on at all. It has electronic ignition, thermostat seems ok, circuit breaker Ok. There is nothing going on at all. It doesn't try to light.


First find the electronic control board. Is the diagnostic light on and flashing a code? If not look for the automotive type fuse on the board. It is a 3 amp. Is it blown? Next look for a screw in fuse in the ssu switch on the side of the furnace. Is it blown? If all the fuses are good is the door switch behind the front cover working? Is the door properely installed? If all these items are working, you should have power to the furnace. If these items are ok, check for 24volts at the transformer. Check the terminals not black and white. If you have voltage there, remove the red and white thermostat wires on the control board. Next take jump wire and jump the red and white terminals. This rules out the stat and stat wiring. Your furnace should start. Check the status light for any further problems and crossreference the flashing light code to fix.

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Me too


1.Not an expert with natural gas furnaces.
2.Statements below are from my own personal experience, and knowledge from.

The red blinking light you see is on a computer control board. The flashes of the red light represent a type of code. Think of it as a Morse Code, if you will.

For example: Red light blinks three times rapidly, pause, then blinks one more time. This code represents a particular fault. (Fault = Problem)

There is a sticker, with a chart of codes listed for this red light. It is usually placed very near the red light.

A gas furnace should be repaired by a competent HVAC technician. This is not a device that should be attended to, by those who are not trained.
An HVAC technician will know where to look, what parts are needed, and if the gas furnace is safe enough to put back on line. (Safe enough to use)



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