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Gas dryer My dryer won't get hot replaced the ignitor and it's working fine but the gas only comes on once and then no more what do I do?

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Change the 2 coils check the flame sensor.

Posted on Nov 03, 2008

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Frigidaire Gallery Commercial Heavy Duty GAS DRYER Model GLGR331AS1: gas lights and dryer operates for approximately two minutes. Then the gas goes out and approximately 1 minute later the igniter comes...


The flame sensor, ignitor, and coils all are wired together in a complicated circuit so that the coils will not operate untill the ignitor is out of the circuit and is screaming hot. If the ignitor is open or bad the coils will not operate because the ignitor becomes like a thermocouple when screaming hot. So if the ignitor is working and the flame sensor is working properly AND the dryer will work some and then quit, I would suggest to you that the coils are aged and when they get aged they tend to fade and die when used once or twice. It is an aggravating thing to diagnose. Replace the solenoid coils and rock on dude!

Nov 19, 2011 | Frigidaire GLGR331A Gas Dryer

1 Answer

My gas dryer keeps shutting down the heat cycle and I have changed the hot surface ignitor


The gas valve assembly consists of the ignitor, the flame sensor, and the solenoids.
In order for the gas valve assembly to operate, the ignitor must come on, the flame sensor must then shut the ignitor down in order for them solenoids to activates. Them selonoids won't activate untill the ignitor is glowing. Once the ignitor is glowing, it then acts as a thermocouple though the secondary winding on the primary solenoid. As long as you have igniton the ignitor keeps the power to them solenoids on. If fer some reason the gas did not ignite, then after the ignitor cools back down the gas would be shut down and that is your built in safety. So what goes wrong? With a bit of age them solenoids work a little then overheat and quit, making it a very difficult diagnosis. But now you know the secret right?
Swap out them lame solenoids and rock on!
themobilian_3035.jpg

Sep 27, 2011 | Maytag Dryers

1 Answer

I have a Maytag Neptune model number MDG9700A gas dryer...When I first turn the dryer on the dryer will get hot for about minute then the gas turns off and will not heat up again...It glows fine after...


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 outthis electric no heat tip...

heatman101

Aug 01, 2011 | Maytag Neptune MDG9700A Gas Dryer

1 Answer

Does't get hot


If you have a blown fuse due to an air restriction their won't be any power going to the gas assembly. The gas assembly consists of the ignitor, flame sensor, and gas coils. All are energized at once. If the ignitor fires up and then the flame sensor shuts down but no fire replace the solenoids. The work when cold but die when hot
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How to get into the dryer HERE

themobilian_2173.jpg

Apr 07, 2011 | Roper RGX4634KQ Gas Dryer

1 Answer

I have a Kenmore electric drier # 110.60912990 It runs fine, but no hot air. What should I check. I checked the outside vent and air is coming out. I check the circut breaker and it is fine.


Hi,
If you have a gas dryer2_bing.gif.
The most common problem with a gas and no heat is the ignitor going bad...

Here is a tip that I wrote about that problem...
Gas Dryer2_bing.gif not Working Gas Dryer Not Heating
http://www.fixya.com/support/r4398592-gas_dryer_not_working_gas_dryer_not

If your dryer is electric2_bing.gif..
There could be a number of different problems...
Check out this tip that I wrote about this problem...

Dryer Troubleshooting2_bing.gif Electric2_bing.gif Dryer won t Heat
http://www.fixya.com/support/r3866345-dryer_troubleshooting_electric_dryer_won

heatman101

May 03, 2010 | Kenmore 64942 Electric Dryer

2 Answers

Dryer will not heat. lint filter is clean. dryer runs fine bosch dryer nexxt 500.


Hi, If you have a gas dryer2_bing.gif.
The most common problem with a gas and no heat is the ignitor going bad...

Here is a tip that I wrote about that problem...

Gas Dryer2_bing.gif not Working Gas Dryer2_bing.gif Not Heating
http://www.fixya.com/support/r4398592-gas_dryer_not_working_gas_dryer_not

If your dryer2_bing.gif is electric2_bing.gif..
There could be a number of different problems...
Check out this tip that I wrote about this problem...

Dryer2_bing.gif Troubleshooting2_bing.gif Electric2_bing.gif Dryer2_bing.gif won t Heat
http://www.fixya.com/support/r3866345-dryer_troubleshooting_electric_dryer_won

heatman101

Nov 08, 2009 | Bosch Nexxt 500 Dryer

2 Answers

Dryer won't get hot


First thing to check is the ignitor underneath the drum. (You have to open the panel to see it) It should glow shortly after the dryer starts, then the flame starts and the ignitor shuts off. If the ignitor does not glow then it or the thermostat is bad. If the ignitor is glowing but the gas does not light then the gas valve coils may have to be replaced. If the gas ignites but does not stay on either the flame sensor or the coils are at fault.

Aug 12, 2009 | Dryers

1 Answer

Tumbling fine no hot air. is a gas dryer


First, check that the ignitor is working properly. It should glow visibly if it is working. If the ignitor seems to be functioning properly, then I would suspect the gas valve coils. These electrical coils are right above the gas valves and when these solenoids are energized they open the gas valves and permit the burner to light. If they are faulty, the gas valves don't open so no gas gets to the burner. Due to the difficulty in testing these solenoids, it is recommended that both (all) be replaced at the same time if any are suspected of being faulty. Hope this helps and best wishes.

Aug 11, 2009 | Dryers

1 Answer

No Heat


Hello
Welcome to Fixya


Remove the vent line from the rear and try the dryer.
If it heats then that means there is a clog or kink in the vent line blocking the vent air from exiting which will stop the dryer from getting hot!
If not then it's another one of these problems.

Defective Ignitor (Gas Only)
When heated the ignitor used on your gas dryer must obtain a specific high temperature
in order to activate the flame sensor. This ignitor is fragile and susceptible to cracking.
A hairline fracture that is barely visible to the naked eye is enough to change
the resistance of the ignitor to a point that is will not work properly.
You can test the resistance of your ignitor. You should get a reading of 50-400 ohms of
resistance.

If the ignitor gets hot and then goes off after about 10-15 seconds and there is
no ignition, the problem is probably not the ignitor. It is most likely the gas valve
coils that are defective.

If the ignitor comes on and stays on, it is the flame sensor that is defective.

If the ignitor is not getting hot it could also be one of the thermostats that is defective.
The power for the ignitor is passed from the timer, through all of the thermostats,
limit switches and fuses to the ignitor. So if you are not getting power to the ignitor
during ignition, you should check the continuity of the individual thermostats and fuses.
DRYER DOES NOT HEAT



Defective Gas Valve Coil (Gas Dryer Only)

If the gas dryer will light once but will not relight until it cools down, it is likely the gas valve coils are faulty. These coils loose some strength when subjected to heat. When they become old, the addition of heat may be enough to prevent them from opening the gas valve when hot. However the coils still work when when cool.

An easy way to diagnose the coils when the burner is not lighting, watch the ignitor. If the the ignitor glows for 10 to 15 seconds but no flame is created, then the coils are faulty. If the ignitor is not glowing the problem is elsewhere.

Recent Customer Symptoms:
The dryer burner doesn't always come on when starting. If the burner does come on, once it goes off if won't come on again until the dryer cools down.



Defective Flame Sensor (Gas Dryer Only)
The flame sensor's job is to monitor the ignitor for sufficient heat
to ignite the gas. A properly operating flame sensor will pass a
continuity check under room temperature.

Common Symptoms
If the flame sensor is defective in the open position,
the ignitor will not get hot when the dryer is started.
However, if it is defective in the closed position the ignitor
will get hot, but the flame sensor will not allow the flame to ignite.
In this case, the ignitor will usually stay hot for a long period of
time.



Defective Thermostat
The thermostats are responsible for maintaining the proper temperature
in the dryer. Check the exhaust temperature of the dyer and if the
temperature is above 150 degrees, you will most likely need to change
the operating thermostat.

The thermostat can also fail in the opposite mode.
It can prevent the element from heating at all.
A failed continuity check at room temperature will verify this condition.

There are some special thermostats that are single pole double throw.
These thermostats are often used to control the timer when set to the
Automatic Dry cycle. If the dryer timer will advance in the Timed Dry
cycle but not the Automatic Dry cycle, then the thermostat could be the
problem.


Defective Thermal Fuse
The thermal fuse is in series with one leg of power to the motor.
If the fuse is open (no continuity) the motor will not run.

Location:
The thermal fuse is located in different locations according
to the model and brand of dryer.

Solution:
Check the thermal fuse for continuity with a volt/ohm meter.
If it is open, it will need to be replaced






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Jan 25, 2009 | Kenmore 73952 Gas Dryer

1 Answer

Maytag Gas Dryer SDG515DAWW - heating stopped


The heat is regulated with a Klixon mounted next to the blower housing near the vent pipe so it can judge the temperature of the air coming out of the drum.Right next to it is a melting type fuse. If the dryer runs and gets too hot the fuse will melt.But the dryer will still run. So if the fuse is good(continuity) and the dryer control(cycle) thermostat is also good then you should have power going to the gas valve assembly when the machine is running unless the timer is in the no heat or wrinkle free/cool down mode. When the gas valve assembly is energized the flame sensor a%20flame%20sensor%202.bmp flame sensor mounted outside the burner chamber detects the heat from the ignitor. When the heat is very intense then the sensor shuts down the igniter
a%20igniter.jpg Igniter and that frees up the power so that the coils can be fully energised and open the gas gates. The gas comes out and hits the red hot igniter and you have ignition. It stays on for maybe 2 or 3 minutes or until the control thermostat is satisfied and shuts down power to the gas valve assembly.

Jan 03, 2009 | Dryers

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