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The ignitor fires up for about 15 seconds but then it goes out. The gas doesnt click on and there is no flame.

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Hi, If you are having problems with your gas dryer not heatingthe most common problem is that the ignitor goes bad. Even though it glowssometimes it is still not working properly. if you dryer is gas check out this gas no heat tip.... If you have an electric dryer, you can have many differentthings that can go wrong causing the dryer not to heat. check out this electric no heat tip...

heatman101

Posted on Oct 09, 2010

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My Ruud achhiever 90 starts to fire but as soon as the blower fires the burner goew out. I also noticed that the "igniter" on the end isnt firing. Could that cause the burner to not stay lit when the


There is an ignitor and a flame sensor. If the ignitor does not ignite the gas after a time, it goes out. If the flame sensor does not detect ignition the gas valve closes. When you start it you should see the ignitor come on like a light bulb and glow, then the gas valve opens and you get ignition. Then the flame detector turns on when the ignitor goes out. Flame detectors are like a chrome wire that has one connection to it and it sits part of the way in a burner. They get dirty and corroded. When that happens it shuts down. You can clean the flame detector with steel wool of scotch brite pads. Dont get too carried away doing that though.

Dec 25, 2012 | Heating & Cooling

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No heat, ignitor goes on burner goes on sometimes and after short time goes out. ignitor goes back on, but no burner. what up


If the flame sensor is not returning a good signal, the gas valve is shut off as a safety measure. I surmise that in this situation, the igniter is programmed to fire for a time to flare off any accumulated gas from the initial attempt to fire up the burner.

Check for the following: adequate combustion air supply (make sure inlet vents are clear), proper exhaust venting, flame sensor properly positioned and not cracked or otherwise broken, burner holes are clean and not caked over with combustion deposits (if the flame is uneven and weak right where the flame sensor is located, it will be treated as a failed ignition).

In the worst case, the gas valve is defective and unable to detect the flame signal. It's also possible that a thermostat is sending an overheat signal, but that doesn't account for the igniter sparking a second time after the burner shuts off.

May 19, 2011 | Maytag Neptune MDG9700A Gas Dryer

1 Answer

Furnace goes through start up sequence normally, ignitor fire, gas comes on, ignitor goes off, but gas only stays on for about 10 seconds then system restarts all over again.


Not knowing the make or model of your furnace I can only guess that either the flame rod is dirty or bad, the flame spreader tray is dirty or you have a bad ground off of the PC board. You could also have a bad intermittent pilot if your system has one. The flame rod is located in front of the burner at the last one that fires up. It will have only one wire going to it. The flame spreader tray connects each burner together and the gas flows down it.

Mar 12, 2011 | Heating & Cooling

1 Answer

Doesnt blow any heat we checked all connections furnace clicks on but never gets warm we think maybe its the heating element but we are not sure how to get to it to check


Problem: Your furnace will not ignite the gas to produce heat for your home. When a furnace has a bad ignitor what I see most of the time is the following sequence of operation:


1. Thermostat calls for heat. 2. Draft inducer motor starts. 3. Pressure switch attached by a small plastic or rubber tube senses the negative pressure produced by the draft inducer and closes. 4. Draft inducer runs for 30 seconds to a minute before you hear a gas hissing sound. The ignitor did not glow, the flame sensor (a small metal probe about 1/8" in diameter, with a white porcelain base) does not sense the flame, so after 8 to 10 seconds the hissing sounds stops with no ignition of gas to heat your home. Your furnace shuts down and goes into a lock out condition until you turn your power switch back off and on again. Then the sequence starts all over again with no ignition of the gas. Solution:You probably need to purchase and install a new ignitor. I would suggest that you inspect your ignitor closely for cracks. Make sure you do not touch the ignitor with your bare hands. If you do not visually see a crack, then you could have a furnace control board problem or a limit, rollout switch problem.The furnace's control board might not be supplying the voltage to the ignitor. If your furnace lights and the gas stays on for 8 to 10 seconds, then shuts right back off, then you need to clean your flame sensor with light sand paper or steel wool. You might need a new flame sensor, but most of the time they can be cleaned an will work well after cleaning.

Dec 19, 2010 | Heating & Cooling

1 Answer

It does not fire at all times igniter works, I can hear the gas valve when opens, some times it fires for a minute and some times does not fire at all


Problem: Your furnace will not ignite the gas to produce heat for your home. When a furnace has a bad ignitor what I see most of the time is the following sequence of operation:


1. Thermostat calls for heat. 2. Draft inducer motor starts. 3. Pressure switch attached by a small plastic or rubber tube senses the negative pressure produced by the draft inducer and closes. 4. Draft inducer runs for 30 seconds to a minute before you hear a gas hissing sound. The ignitor did not glow, the flame sensor (a small metal probe about 1/8" in diameter, with a white porcelain base) does not sense the flame, so after 8 to 10 seconds the hissing sounds stops with no ignition of gas to heat your home. Your furnace shuts down and goes into a lock out condition until you turn your power switch back off and on again. Then the sequence starts all over again with no ignition of the gas. Solution:You probably need to purchase and install a new ignitor. I would suggest that you inspect your ignitor closely for cracks. Make sure you do not touch the ignitor with your bare hands. If you do not visually see a crack, then you could have a furnace control board problem or a limit, rollout switch problem. The furnace's control board might not be supplying the voltage to the ignitor. If your furnace lights and the gas stays on for 8 to 10 seconds, then shuts right back off, then you need to clean your flame sensor with light sand paper or steel wool. You might need a new flame sensor, but most of the time they can be cleaned an will work well after cleaning.

Dec 07, 2010 | Heating & Cooling

1 Answer

The ignitor starts but after a few seconds you hear a click and it goes off like gas valve shuts off.


You need to check the wire to the flame sensor. The wire could be bad or the connection on the end could be loose or corroded. You can get fire but if it dosn't read back to the ignition control, the control will think no fire and shut the gas off, (thats the click you hear) to keep it from building up and causing an exposition.
If the sensor wire is good, clean and tight. Then it will be the ignition control itself or the pilot isn't hitting the flame sensor.

Dec 01, 2010 | Jandy LAARS GAS VALVE ASSY.,LP ALL EXCEPT...

1 Answer

Model LG8219W2 On initial start up igniter turns on and flame is ok, after heats up and cycles the flame does not reignite,I can see the igniter glow red but flame does not return. the igniter contiues...


HI. This will essentially be an issue that concerns the gas valve coils. With that said, I will post below a complete burner assembly procedure that will help you isolate the culprit. I'm sure that the coils will fail the test, but to be safe, follow the procedure to confirm.

Gas valve/Burner testing procedure:

On the gas valve are one or two coils (solenoids) used to open and close the valve to control the flow of gas. If a coil fails, gas will not flow and the dryer will have no heat.

The easiest way to diagnose a problem in the burner assembly is to observe the burner operation. Remove the small access panel at the bottom, front of the dryer, select a high temperature setting and start the appliance. Watch the burner assembly, shortly after starting the dryer the ignitor should begin to glow. Next you should hear the click of the gas valve coil and a flame should ignite. The flame should be mostly blue and it should remain on for a minute or more.

If the ignitor glows for several seconds (up to 15 seconds) and then goes out, the problem is probably the coils (solenoids). If the ignitor glows and stays on, then the problem is usually the flame sensor. If it ignites and then quickly goes out, it is most likely a problem with inadequate air flow.Test the coil for resistance using a multimeter. Set the multimeter to the ohms setting X10. Place a probe on each terminal. The multimeter should change from a reading of infinity to roughly 1300 ohms (+/- 150 ohms) when the probes touch the terminals. If the reading is infinity or substantially different from 1300 ohms, the solenoid should be replaced.

Click Here to access a exploded diagram of the burner assembly. The affected coils will be labeled number 15 and 10. The actual coil and valve assembly will be labeled number 11 and the burner will be labeled number 9

Aug 22, 2010 | Amana NED7200TW Electric Dryer

1 Answer

Goodman gmnt060 3b doesn't light


check for 24vac between wires on gas valve about 5-10 seconds after ignitor starts to glow. If ignitor does not glow, check for 120 vac to ignitor after inducer goes on.
First...sequence of operation..power to W, inducer motor gets 120v and starts, 10-15 seconds later, ignitor gets 120v and glows, 5-10 seconds, gas valve gets 24v and opens, after 3-4 seconds the flame sensor approves flame and unit stays on. If this is not happening, it has to be in this sequence. Which ever is not happening and you do have voltage to that component, that component is bad. If you are getting a error code on board after it tries to light, pay attention to the code. if a 1 lock out code, that just means it tried 3 times and did not recognize a flame.

Jan 06, 2010 | Goodman GDS80904BNA Open Flame Heater

1 Answer

I have a problem with my heating system. It is about 10 years old and has had the ignitor, combustion blower motor, and programable thermostat replace in it's lifetime. The system worked great last year....


sounds like its not proofing flame. it has a sensor usually like a needle sticks out into the flame that tells the gas valve the flame lit and is burning so its ok to keep sending gas, if its fails to proof flame then burner shuts down, then it tries to relight 3 times then locks out on fail safe. the blower will sometimes run continually once that occurs to highlight a failed condition. every time you reset it will try again 3 times then shut down. lp gas is very dangerous, even i do not work on it as the gas acts like gasoline and lays around. not like natural gas that disperses well. if you see the flame sensor try gently cleaning it with a little emory cloth. also a loose ground can cause this. check tio be sure any green wires are snug , they actually flow volts to ground through the flame on some to proof, thats why no ground no flame. if that fails then the board is most likely problem. change wire for wire , or get generic replacemant and follow directions exactly. good luck.some ignitors act as a flamre proofer as soon as they are done igniting! rarely do they fail to perform both funtions.

Nov 20, 2008 | Heating & Cooling

1 Answer

My furnace fires up and runs for about 30 seconds,, then the gas shuts off


First we need to understand what is probably happening by understanding how this unit works.
A flame safety senses a flame and if one is not present it shuts off the gas supply. This safety is incorporated to make sure that if the flame goes out for any reason, it doesn't continue to dump gas into the furnace. Because I have no idea what type of sensors this unit uses, can you explain to me what kind of ignitor it has? See if it has a spark, or a hot surface ignitor. The hot surface ignitor will glow very bright white but looks like it's made of ceramic.

Sep 18, 2008 | Goodman Heating & Cooling

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