My Whirlpool LGB6300 heats up but never comes back on as if the limit switch kicks on and doesn't allow it to remain hot.

check the gas supply pressure. if not within required pressure consult the gas company. if there is no problem with gas pressure get to the back of the unit to check the fuse for the gas solenoid valve that controls the flow of the gas. if solenoid valve is faulty, replace it with a good one . . if after installing a new solenoid valve unit still does not kick in , check the igniter . replace with a good one if it is broken , the unit should produce heat now .thanks.

Must be something in the blower section. You need to get into the dryer and clean it up. Air restrictions cause overheat condition. When the temp gets so high the limits shut it down. Lots of videos on you tube that show how to get into. You can google gas dryer dan webster or roper dryer no heat dan webster and I have some videos posted how to get into these.

If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61

Check to make sure that the pressure switch is not opening. Clean the pressure switch port

I think you are on the right track with a faulty high limit switch. When i serviced these units we always replaced the operating thermostat and the high limit switch together they came in a kit. The operating thermostat in theory should never let it get hot enough to trip the high limit switch, which is really just a safety backup for the operating thermostat. Get the kit and replace both, and also make sure your exhaust vent going outside has good flow at the outside vent,a restricted vent system will cause similar issues.. Good Luck

It could be several other things thermal fuse, thermal cut out, hi limit thermostat, dryer coils, heat sensor,or igniter. All of these parts are inexpensive and easy to test and replace.There is a video at t http://appliancehelponline.com/gdryertroublevideo.html his will walk you thru the troubleshooting of these components. It may be a different model but the troubleshooting will be the same.You can also enter your model # for diagrams and illustrations. All parts come with installation instructions. Not all models are available. If you need help disassembling your machine there are videos of this also for most styles.

nead to check ignitor,then the flame sencer on the right side of the cone.then check the high limit thermal switch on the left side of cone.you nead a continueaty meter to do this. if they check out you nead to call for service call.

The furnace could be shutting off on High Limit ...means your furnace is running too hot...check your filter and make sure return air vents are clean and clear....also it can be the Heat anticipator in your thermostat...which controls how many times your furnace cycles...basically your furnace should come on and off 5-6 times/hr ....need more info on your type of furnace and type of thermostat

The heating element have got old and brittle over time and finally gave up the ghost. But it is not always the element. It could be one of the safety Hi-limits have blown. All parts of the dryer will have continuity if its working properly. Test for continuity by using a meter set on Ohms,or use a poor man's meter. You can make your own poor man's meter by using an ordinary flashlight . Break the circuit in the flashlight and add a couple of wires to it so that you can make the light come on in the flashlight, that's right hot wire that flashlight. When the bulb lights up you have a circuit! You now have a poor man's meter. The next step is to check each little gizmo on the dryer that the wires attach to. All the limits attached to the side of the heat element, the door switch (when door is closed) etc.should have continuity (closed circuit)(the light should come on in the poor man's meter) If you come across an thing near the blower housing with 2 wires attached to it, that is a thermal limit, a safety or a control thermostat (So as not to get a false circuit you need to remove one of the wires to each thing you check) Look for lint buildup or blocked vent going out the house. If everything is good and you have paid the electric bill, then the timer could be bad.

check the thermostat and the heating element may be damaged

it could be a bad limit switch (metal thermostat) that turns the heat off when getting too hot. if the heat continues too much it will burn out a "fuse" in the back of the machine and it will not turn back on. so if you replace the "fuse" then make sure you replace the limit switches too or the "fuse" will burn out again.