Question about Whirlpool LGR7648KQ Dryer

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Ive changed the ignitor, sensor, thermostat, fuse-thrml, and thermostat-fix.. my dryer still is only heating for only 5 min then goes cold. what can i do? model: LGR7646JQ0

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This is usually the dryer coils have failed. They tend to fail as they heat up. They are inexpensive and easy to replace. Here is a video on replacing the dryer coils.

Posted on Nov 11, 2010

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Posted on Jan 02, 2017

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1 Answer

Dryer turns on and lights , heats approx. 1 min. goes out when up to temp, stays off approx 1min. lights again, may do this for 5 times then just doesn't relight. Stays cold, keeps spinning drum. ...


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 19, 2011 | GE DCVH515GF Gas Dryer

1 Answer

Maybe you can help. The problem I am having is the dryer turns on and runs. The gas lights and the coils get hot. After about 5 mins the gas goes out and the dryer runs cold. After a few mins the gas trys...


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If you are having problems with your gas dryer not heating the most common problem is that the ignitor goes bad. Even though it glows sometimes 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 different things that can go wrong causing the dryer not to heat.

check out this electric no heat tip...


heatman101

Sep 01, 2010 | Dryers

1 Answer

Gas dryer won't ignite. ignitor pulls 3.8amps. thermal fuse has continuity. flame sensor is working. jumped sensor no resultbesides checking outgas valve coil for ohms what other possibilities could...


Hi,
If you are having problems with your gas dryer not heating the most common problem is that the ignitor goes bad. Even though it glows sometimes 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 different things that can go wrong causing the dryer not to heat.

check out this electric no heat tip...


heatman101

Aug 31, 2010 | Maytag Dryers

1 Answer

Have a kenmore 11072802101 gas dryer. it will heat for about 5 min & THEN BLOWS COLD.I replaced thermal fuse.IS IT THE REGULATOR?? OR THE OPPERATING SENSOR.


Hi,
If you are having problems with your gas dryer not heating the most common problem is that the ignitor goes bad. Even though it glows sometimes it is still not working properly.

Check out this tip that will give more details…

Gas dryer not working gas dryer not heating
http://www.fixya.com/support/r4398592-gas_dryer_not_working_gas_dryer_not


If you have an electric dryer, you can have many different things that can go wrong causing the dryer not to heat.
Check out this tip to see the things that can fail to cause your electric dryer not to work.

Dryer Troubleshooting Electric dryer wont heat
http://www.fixya.com/support/r3866345-dryer_troubleshooting_electric_dryer_won


heatman101

Aug 23, 2010 | Dryers

2 Answers

Whirlpool Gas Dryer Model # LGR7646JQ0. Bought it used, warranty useless since the shop I got it from went out of business. Everything works fine. The drum turns, the timer works but the thing doesn't heat...


Hi and welcome to FixYa. I am Kelly.

Your power for the burner assy goes on a series circuit from the timer to the high-limit thermostat to the operating thermostat to the thermal fuse to the gas burner assy, thru the motor centrifugal switch to the door switch. EACH of these must be functioning for the burner to light.

This manual will help with some of the how to do it as far as component access, removal and replacement of parts.

https://secured.whirlpool.com/Service/SrvTechAdm.nsf/2cd44500d572193285256a45004fd9d6/4829abde74a34d7f85256ab000620794

Also this link has loads of information on what to check.
http://fixitnow.com/wp/2006/09/19/how-to-check-the-burner-components-in-a-gas-dryer/

The 3 most common failures are
Igniter:
Gas Valve
High Limit Thermostat

Compnents : http://fixitnow.com/appliantology/gasdryer.htm

Note the LINKS!

Here is a 9 min video that pretty much covers everything you need to check: http://www.howcast.com/videos/371390-How-To-Troubleshoot-a-Gas-Dryer-That-Wont-Heat

Thanks fo choosing FixYa.

Kelly
The

Aug 20, 2010 | Whirlpool LGB6300 Gas Dryer

1 Answer

Was getting one heat cycle then ignitor woud glow but no call for gas. put in new cycling thermostat, thermostat boosting heater and heat sensor. I got two heat cycles before it went cold..?


Normal 0 MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman";} Hi,
If you are having problems with your gas dryer not heating the most common problem is that the ignitor goes bad. Even though it glows sometimes 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 different things that can go wrong causing the dryer not to heat.

check out this electric no heat tip...


heatman101

Aug 08, 2010 | Amana DLG330RAW Gas Dryer

1 Answer

I have a whirlpool gas dryer that will spin but not generate any heat? maybe the ignitor or the burner?


it could be:
1. thermal fuse (check continuity ~0 Ohm)
2. gas valve coils (check continuity with Ohmmeter set to x100 or x1000)
3. Ignitor (check continuity, can be up to 80 Ohm)

Much less likely:
4. radiant heat sensor (should open when heated by ignitor).
5.cycling or high limit thermostat (check continuity, ~0 Ohm)

Mar 04, 2010 | 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

2 Answers

No Heat on a whirlpool dryer. 14 years old.drum turns,timer moves,getting gas to valve,tapped solenoids-no change.burner not lighting. thanks for any info


if ignitor not coming on could be flame sensor mounted on side of burner housing or ignitor ..if ignitor glowing but burner no lighting replace both solenoids bad connections interally on solenoids..also if ignitor not glowing possible small white thermal fuse open.. sensor and fuse can be jumped across to confirm ..

Dec 22, 2008 | Dryers

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