LG Dryer Not Heating? – Complete Troubleshooting Guide [2022]

LG produces several models of clothes dryers, which are among the top large home appliances brands. In some cases, however, you may encounter problems with your LG dryer, such as it not heating up.

There could be one of the following reasons for your heater not heating up at the moment if you have one.


These factors usually contribute to LG gas or electric dryers not heating up

LG Clothes Dryers not heating up and leaving your clothes partly or completely wet are likely caused by a number of factors. The most common causes we found for this problem are listed below.

 Furthermore, we provided instructions on how to test and repair each possible cause.


A blown thermal fuse is preventing the LG dryer from heating up

In order to provide a sense of safety, LG Clothes Dryer includes a thermal fuse as an integral part of the power circuit.

An electric dryer’s overheating protection device shuts off the power to the heating element. Also, it is used in gas dryers to shut off their burners. If you want to test the continuity of a thermal fuse, then you will need a multimeter in order to be able to test the continuity of the fuse with a multimeter

In order to test the fuse on the dryer, it is necessary to gain access to the back. It is first necessary to unplug the dryer in order to remove the vent hose.

By using a 14″ nut driver, you should be able to remove the back covers by pulling them away from the wall.

The Thermal Fuse must first be removed by removing its screws, then its wires must be removed as well. Ensure the fuse is in good working order by testing it with a multimeter and replacing it if necessary.

You can either order the new Thermal Fuse online or you can find it in a local store if you need to replace it. Alternatively, you can just place the new fuse in place, tighten the screw holding it and reattach the wires if you already have them.

Reattach the covers and tighten them all with the 14″ nut driver. When you have plugged in the power cord and connected the exhaust hose to the unit, test the unit out.


The LG dryer is not heating up due to a tripped high-limit thermal fuse

In addition to the thermal fuse, LG Gas Dryers come with an additional safety feature.

As the name suggests, this particular thermal fuse is designed to cut the power supply to the ignitor in the event that it becomes overheated.

You may experience overheating if you have clogged vent lines or you have not cleaned your dryer for many years.

Resetting this ignitor requires turning off the dryer’s power first. Then, removing the dryer exhaust located at the back of the dryer. The exhaust can be removed by removing the one screw that is holding it in place and pulling it out.

In this opening you will find a thermal fuse that has a small black button on top of it that you can see through. There should be a click to indicate that you have reset the fuse when you push the button.

Afterwards, you can reassemble everything and test it.


The LG dryer is not heating up due to an ignitor failure

It would be impossible for gas to ignite if the ignitor failed, and no heat would be produced.

When you press the Start button and the dryer starts, but it doesn’t produce heat, a failed ignitor may be to blame.

Get a new ignitor online or at a local store if you need one.


The LG dryer is not heating up because of a faulty gas burner valve assembly

Gas flows through the burner through a gas valve with coils, producing heat.

As you can see, the valve is equipped with two coils, one for the primary coil and one for the secondary coil. It would be a good idea to use a multimeter to determine whether both wires are connected. One of them is likely to fail and show zero resistance, which will prevent the gas valve from opening.


Due to a burnt out heating element, LG dryer is not heating up

Electric LG dryers use an electric heater element to provide the heat necessary to dry the clothes that are placed in the rotating drum during the drying process. A heater unit consists of a number of heater coils, each of which is attached to the heater unit.

If one or more of these coils are burnt, it will result in the clothes not being able to dry properly, or even not being able to dry at all, depending on the situation.


Replacement of LG Dryer Heating Element

Test the heating element with a multimeter or visually inspect it by looking for burnt spots on either of the heater coils to be sure it is the heating element causing the problem. For you to be able to check if this is the case, you will need to gain access to the interior of the dryer.

The power cord of the dryer should be unplugged and the exhaust hose disconnected for safety’s sake. The unit needs to be pulled away from the wall and the screws holding the two back covers need to be removed with a 14″ nut driver.

The dryer heater unit can be found at the lower portion of the dryer when the covers are removed. Ensure that the wires are disconnected and that the screws holding the heating unit are removed.


LG dryer is not heating up: troubleshooting

Inspect the heating coils of the heater unit carefully after you have removed it from the dryer. A multimeter can also be used to test it and make sure that it is in good working order.

You should replace your heating unit if you find any evidence of burning. The unit does not have continuity if the test indicates it.

There is a possibility that the manufacturer could assist you in ordering a new one if you need to replace it with a new one.

It is as simple as reinstalling the new one, tightening the screws, and putting it back into the dryer.

In order to reinstall the covers, you will need to tighten the screws and replace the covers.

In order to use the machine, you will need to plug in the power cord and connect the exhaust hose. Put the dryer back in place and turn it on again to see if it heats up again once you have moved it back in place.


Clogged vent line on LG dryer

Through a flexible exhaust hose, LG Dryers can be connected to a house exhaust vent. LG has included this as another safety feature in every one of its clothes dryers in order to make them as safe as possible.

It is possible that LG dryer is not heating up because the flexible hose has collapsed or has become heavily clogged with lint. There is lint clogging the flexible hose inside the drum area that has not been caught by the lint screen.

If you want to make sure that there are no obstructions, you will need to check a few areas for clogs. Remove the dryer from the wall, unplug it, disconnect the exhaust hose, then plug it back in.

Firstly, you should check the area where the hose is connected to the dryer to see if there is any lint build-up. As a next step, check the hose to see if it hasn’t collapsed anywhere along its length to ensure that nothing has collapsed.


LG dryer is not heating up due to collapsed flexible hose

Last but not least, we need to make sure that the pipe where the exhaust leaves the house is in good shape.

Getting a new length of flexible hose from a local store should be enough to replace the hose if it needs to be replaced. The new hose should now be connected and the clamp holding it in place should be tightened.

The power cord should be tested by plugging it back in and pushing it against the wall for a few seconds.


There is a problem with the control board of the LG dryer that prevents it from heating up

Your last check should be the main control board, which is the least likely source of the problem. In contrast, testing the control board is much more difficult than testing the other components. Which are easy to test using a multimeter.

Having tested or replaced the other components, the control board can be removed for inspection. If you need to replace it, you should contact the manufacturer and order a new one.

Remove the top cover by unplugging the power cord and disconnecting the exhaust hose from the dryer.

All of the wiring that is connected to the main control board should be removed after removing the top cover. The board is held in place by a single mounting screw that needs to be removed.

Remove the old board from its position by sliding it out of the way. In order to install the new board, you will need to take it out of the package and slide it into place.


How to fix LG dryer not heating up

All of the wires need to be hooked back into place, the mounting screw needs to be placed into the hole, and the screw needs to be tightened to secure everything.

Covet screws should be tightened and the covet cover needs to be replaced.

If the dryer does not heat up again after connecting the exhaust hose and plugging back in the power cord. Connect the exhaust hose as required.

Inspect the components on the board to ensure they have not been burned.


Frequently Asked Questions

What Is the Reason LG Dryer Heats But Doesn’t Dry Enough Clothes?

A clogged dryer vent line is one of the most common causes of a dryer that seems to heat but doesn’t dry clothes. Dryers can’t release moist air, so it just circulates within them.

Ensure that your vent exhaust is working properly by going outside and checking your house’s airflow.

Clogged vent lines may cause weak air to come from the vent exhaust.


What Are LG Dryer’s Most Common Not Heating Up Issues?

Unlike the rest of the dryers, LG dryers have the same most common problems. Typically, they relate to:

  • The LG dryer is not heating up

  • Squeaking or grinding noises are coming from the dryer

  • There is a problem starting the dryer

  • The dryer won’t turn off unless the door is open


What Is The Best Way To Reset LG Dryers?

To reset LG dryers, follow these steps:

  1. The dryer should be unplugged and the power turned off

  2. You should hold down the POWER button for 5 seconds before turning on the device

  3. For five seconds, hold down the START button As a result of this procedure, the main control board will be reset to its default settings.


How to Troubleshoot an LG Dryer That Is Not Heating Up

  1. Make sure the dryer is receiving the right amount of power

  2. Ensure that the dryer’s vent line is not clogged

  3. The dryer’s flexible vent hose should be checked.

  4. Check to see if it is not kinked Follow the steps below to disassemble the dryer.

Using a multimeter, check the continuity of the heating element / thermal fuse. In the event of a lack of continuity, the part should be replaced.


LG Dryer FlowSense Reset

FlowSense technology is available on LG Dryers to prevent the dryer from overheating. Temperatures inside the dryer are measured by two FlowSense sensors (inside and outside). However, the control panel will display an error code D80, D90, D95 if the temperature difference exceeds several degrees, or the FlowSense display panel will display four bars.

In order to reset a FlowSense error code, it is necessary to clean the dryer inside, clean the FlowSense sensors from lint, and ensure that the vent line is properly ventilated.


Clean Filter Reset for LG Dryers

The message RESET of Clean Filter does not appear. If you use the dryer on a regular basis, you should make sure that the lint filter is cleaned every time. Moreover, your dryer is in good working order, so that means nothing is wrong with it.


Is there a reason why my LG dryer keeps tripping the thermal fuse?

Overheating inside the heating element assembly causes your LG dryer to trip the thermal fuse. Clogged vent lines, grounded heating elements, and faulty control boards can cause these problems.


How Do I Fix NP Error Codes?

nP stands for “NO POWER” on LG electric dryers. When a dryer runs only on one phase, it is usually caused by a failure in the power supply. 240-volt electric dryers run on two phases, and if one phase goes out, the dryer stops heating and throws an nP error. Inspect the double breaker on the dryer for tripping (reset the breaker if it has). Then, check the receptacle for power loss (a burned wire could cause the loss of connection).


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