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Troubleshooting LG Dryer Not Heating: Causes and Solutions

LG is one of the top brands that sell high-quality dryers. However, like any other home appliance, the dryers may fail to function as expected.

One common issue with LG dryers is the dryer, not heating. This article will walk you through some causes of LG dryers not heating up.

LG Dryer Not Heating

If your LG electric dryer is not heating, it could be due to the following causes:

Clogged Vents and Lint Filter

A lint filter is installed at the bottom of the door of LG dryers. It helps trap stray fluff, fuzz, and other materials that block airflow. For whatever reason, if the filter is clogged, your LG dryer may not be able to heat up. You can ensure that the filter remains effective by cleaning it after every cycle.

When an LG dryer doesn’t heat up, use these steps to clean the dryer vent and lint filters:

  • Lint trap cleaning:  Remove the trap, then wash it with warm water, dish detergent, and a soft brush. Before reinstalling, let the item air dry.
  • Lint trap’s housing cleanup: To eliminate lint accumulation in the filter housing, utilize an appliance brush or the thin hose attachment for your vacuum.
  • Dryer vent cleaning: Unplug the dryer and move it away from the wall to detach its vent. To remove lint and debris, slide the vacuum hose attachment or appliance brush around inside the vent. Repeat for the vent going to the home’s exterior exhaust opening. Connect the dryer’s vent again, plug your dryer back in, and adjust its position.


Overloading your LG dryer can cause it not to heat up. If your dryer is overloaded, you must remove all the clothes and then put the required load to allow more room for heated air to circulate and dry your clothing.  

You can avoid overloading your dryer with these recommendations for proper usage and care of a dryer:

  • Just one wash load should be placed in the dryer at a time.
  • Ensure each load only fills 3/4 of the dryer drum for optimal circulation.
  • Offer enough room for huge items, such as bedding, by drying them with one or two smaller pieces or alone.

Blown Thermal Fuse

The thermal fuse is a safety feature in LG clothes dryers. Its purpose is to safeguard the dryer from overheating. 

The fuse is situated in one of the three parts—the blower housing, the heating element (for electric dryers), or the burner( for gas dryers).

To examine your dryer’s thermal fuse, you will require a multimeter to check for continuity. 

To utilize a multimeter, access the back of the LG dryer and follow the easy steps below:

  • First, turn off the unit’s power. This can be accomplished by turning off the power source. You can also go ahead and unplug the dryer from the power source.
  • Find the location of the fuse. It ought to be close to metal coils with dark-colored insulation. The fuse has two vertical lines running through it that are not joined in between.
  • After locating the fuse, place the multimeter probe tips on its ends to test for continuity of the fuse.
  • If the fuse lacks continuity, you should replace it with a new one.
  • If there is continuity, your LG dryer probably has an internal problem that needs more significant repair or replacement, depending on how serious it is.

A thermal fuse blowing is a sign of constrained exhaust venting. It is crucial always to make sure the dryer vent is clear before changing a fuse.

Damaged Heating Element

The heating element in your LG dryer is only a length of coiling metal that produces heat when stimulated by electricity. 

A standard LG dryer features a long, thin heating element coiled up like a vintage telephone cable. The heated coils in the drum heat up the air that passes over them.

Because the heating element is susceptible to short circuits, the dryer sometimes cannot generate heat. 

Use an ohmmeter to check the electrical connection of the component to identify the cause of your LG dryer’s inability to heat up. If no continuity is found, there is a problem with the heating element. Look for a dryer repair professional that can provide and install a brand-new heating element. 

A few individual parts may have burned out, rendering the element nonfunctional.

A Defective Cycling Thermostat

A cycling thermostat controls the air’s temperature by cycling the heat on and off. The dryer won’t heat if the cycling thermostat is broken. Although it’s uncommon for difficulties to be caused by this, it could be one of the causes of your LG dryer not heating up.

Call a professional to check your dryer if you suspect the cycling thermostat is defective.

LG Gas Dryer Not Heating

The following factors could be to blame for an LG gas dryer not heating up:

A Defective Igniter

Check the igniter if your gas dryer isn’t heating up. Igniters utilize heat to ignite the gas in the burner unit (which then creates hot air). The gas will not ignite if the igniter is malfunctioning, and the dryer will not operate.

A multimeter inspection of the igniter verifies whether or not it is operating correctly. Replace the elect resistor with a new one if there is no continuity between the two points on the old one to repair your LG gas dryer and remedy this non-warming dryer model.

Nonfunctional Flame Sensor

Gas dryers require a flame sensor to measure the flame’s heat. A defective or damaged flame sensor is one possible cause of your gas dryer not heating up. 

Ensure the igniter and thermal fuse are in good condition before examining the flame sensor. 

A flame sensor should be tested using a multimeter to measure its ability to conduct electricity at room temperature. Replace the flame sensor if there is no continuity at normal temperature.

Final Take 

We hope this article helped you understand why an LG dryer may fail to heat. If you can’t handle any of the repairs mentioned above, ensure you contact a professional to help you.