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Posted on Jan 02, 2017
Could be a couple things. First and easiest is to check your intake combustion air supply. If it is blocked by anything or just not enough flow, it will put out the flame. Next would be the flame sensor, usually a temperature probe near the flame front. If it's not reading an increase in temp within a pre-programmed time, it will kill the flame. It can be checked with a multimeter.
Posted on Jan 25, 2008
SOURCE: My thermocouples only last for
Sound like air flow problem to me, the inside and the outside. check the inside filter to see if it's clean and clean the outside condenser coils by washing it.
Posted on Sep 15, 2008
SOURCE: wont stay lit, cycles like
One possibility is that the Thermo Couple is beginning to fail'
What is a Thermo Couple? (TC)
The Thermo Couple (TC) is a small Rod-shaped device with a couple wires coming out the bottom.
The TC actually generates a small electrical current from the heat of the Pilot.
This electrical current is sensed by the control board, or the Main Gas Valve.
As long as there is a pilot, it is safe for the Main gas valve to open, and admit the large amount of gas into the heating burner.
Now-- What helps this TV work the best?
It needs to be just at the edge of the pilot flame--- Not too much in the flame, or the resulting poor combustion of the pilot flame, results in soot forming on the TC-- which insulated the TC from sufficient heat.
Obviously the TC has to be clean (of soot) in order to receive enough heat, to generate the needed voltage to tell the valve that it is safe to open.
And age does deteriorate the TC-- some last a few years, but that is about the end of life for most.
Replacing requires getting down where the TC is, and with a screw driver (usually) the bracket that holds the TC needs to be loosened. Pay attention to wher the wires are routed, and any polarity indicated on the old wires, and duplicate on the new one. Duplicate routing, and polarity, and position the new TC at the edge of the pilot flame.
Pilot flame is maintained by pushing some over ride button-- for a minute or two, until when you begin to release the button, you can feel that the voltage generated by the TC is now holding the pilot valve open, instead of your pressure on the 'start' button.
Any further Questions, let us know..
Posted on Jan 17, 2011
SOURCE: My Amana GUI090B30B furnace will not ignite. The ignitor glows then the valve releases gas but the gas does not ignite. The ignitor goes out and the valve shuts after a second or two of trying to igni
Hello, it is possible that even tnough the ignitor is glowing it might be too weak to ignite the burners. I would cneck the resistance of the ignitor with a multmeter, should be between 40-90 ohms typically
Posted on Nov 28, 2011
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On the back of the bottom cover for the blower compartment there will be a key to tell you what the three flashes mean....probably telling you that it did not light...meaning you have a bad ignitor...
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