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Not Heating, Not Drying or Long Time Drying

Troubleshooting Dryers Last Updated 02/26/2018
Not Heating, Not Drying or Long Time Drying

Issues with drying performance, including not heating, long dry time, and certain operation errors, can often be resolved without a technician. This content covers both electric and gas dryers.

Watch this video to learn about Reasons Why Your Dryer Won't Dry.

click to play video


  1. Check for error codes.

    If the unit is displaying an error code, you can learn how to resolve it here. If the unit has not displayed an error code, proceed to Step 2.


    How to resolve Error Codes
    error codes

  2. Perform heat test.

    Let the unit cool down if it has recently been used and empty the drum, including clothes and the drying rack. Follow the instruction in the following link.

    View How to Perform Heat Test
    let unit cool and remove drying rack


Go Back

How to perform Heat Test.

Click to Watch Heat Test Video

Watch this video or follow the step by step instructions below:


  1. Press buttons to activate heat test.

    METHOD 1 - SIGNAL BUTTON

    • Put the unit OFF.

    • Press and hold TEMP and SIGNAL buttons all at the same time.

    • While holding them down, press POWER until code appears.

    METHOD 2 - DAMP DRY BUTTON

    • Put the unit OFF.

    • Press and hold TEMP and DAMP DRY buttons all at the same time.

    • While holding them down, press POWER until code appears.

    If Method 1 and 2 fail, try this TIMED DRY METHOD

    • Power the dryer ON and set the cycle to TIMED DRY.

    • Use the TEMP button to select the highest heat.

    • Press the START/PAUSE button. let the unit run for one minute. proceed to step 3

    • If you DO NOT get In5, download a copy of your Owner's Manual for model-specific instructions or use TIMED DRY METHOD above.

    • If runing a timed dry method, the In5 may not display, proceed to Step 3. If you get an error code, resolve the Error Code here and restart this heat test.


  2. Start heat test.

    Press the START/PAUSE to begin. This test will take about three minutes.

    Keep an eye on the Flow SenseTMflowsence indicator indicator and error codes on the display.

    start the heat test
  3. Check results.

    Pick the right answer Do you see any error code on the indicator? (nP, PS, d85 or others)

    Pick the right answer Is the Flow Sense indicator lit?

    Pick the right answer Now, open the dryer and feel the inside of the drum, does it feel warm or cold?

    Select your result from the options below:

Go Back

No Error Codes

  1. Since there is no error code on the unit, we need to know if the drum feels cold or warm after the heat test.

    Is the drum warm or cold?

    Cold Warm
  2. No Bars & COLD Drum

    When no error code or bars appear on the flow sense and the dryer feels cold, this is a power issue, follow the troubleshooting steps below:

    1. For electric units.

      Make sure that the plug is securely plugged into a grounded outlet matching the dryer's rating plate.

      check power plug
      • From the home's main, turn OFF the dryer's circuit breaker for at least 10 seconds to clear the power surge inside the breaker.

      • Put your dryer on power ON and run the heat test again.

      • If the dryer is still not heating at this stage, the unit requires a repair service. Please visit our Request a Repair page.

    2. For gas units.

      Ensure that gas is flowing throughout the house. Use another gas unit to test if gas is runing in the house. If there is no gas in the house, contact your gas company for further assistance.

      If gas is flowing in the house, check your gas connection as described below

      1. How to Check Gas Connection
      2. x
        1. Check gas connection.

          Check that the gas line is securely connected to the dryer (back-bottom-right of the dryer).

          Check gas line
        2. Check gas valve.

          Check that the gas shut-off valve is fully opened and turned to the correct direction.

          off and on valve
        3. Pinched gas line.

          Be sure that the gas line is not pinched or kinked when the dryer is pushed back into place.

          Check if gas line is pinched or kinked

    If you have performed the recommended solution in this article and the unit is still not heating, the unit will require a repair service. Please visit our Request a Repair page.

  3. No Errors & WARM Drum

    The unit is heating and there is air flow. The likely culprit of this long drying time is either of the following:

    1. Energy Saver Mode

      1. Energy saver mode is designed to reduce energy consumption by operating the unit with very low heat. You can turn off energy saver mode each time you use the dryer by pressing the ENERGY SAVER button.

        The light on the button will turn off, and your clothes should dry properly now.

        If you do not have an energy saver button, Proceed to Step 2

        Using the Energy Saver Light
        How to Disable Energy Saver Permanently
      2. x
    2. Clogged Lint Filter

      1. When the lint filter is dirty or clogged, it will cause long time drying. Always clean the lint from the filter after every cycle. Open the dryer door and pull the lint filter straight up.

        How to Clean the Lint Filter
        pull the lint filter
      2. x

        Clean the lint filter using any of the options below:

        Everyday

        For everyday cleaning, roll any lint off the filter with your fingers or a long handle brush.

        clean the the lint filter

        Clean with vacuum

        Use a vacuum cleaner to clean the lint filter.

        vacuum the lint filter

        Wash with water

        If the lint filter has become very dirty or clogged with fabric softener, wash the lint filter in warm, soapy water and allow it to dry thoroughly before reinstalling.

        wash the lint filter
    3. Load size.

      SMALL LOAD SIZE.

      • When drying smaller size loads, it may be better to use TIME DRY instead of sensor dry to achieve better drying performance.

      LARGE LOAD SIZE

      • As long as the items can freely tumble in the dryer, the load is fine.

      • If the clothes are unable to tumble, then the load is too large and some items will need to be removed.

    4. Clogged moisture sensors

      The moisture sensor detects the dryness level of the cloths. If the sensors are clogged, the sensors will not read correctly and cause the unit to shut off before items are dry.

      • Use a damp rag or paper towel and wipe them to remove any build up on the sensors.

      • We recommend that the sensors are cleaned at least once a month with a damp rag or paper towels.

      • After you clean the sensors, run another cycle.

      moisture sensor
    5. Air flow obstructions.

      1. The hot, humid air from the dryer has to go somewhere, or else the moisture will stay in the drum and clothes. 2 or 4 four bars on the flowsense indicate that the exhaust system is severely restricted.

        How to Clear Obstructions
      2. x
        1. Check for lint buildup.

          Check for lint buildup at the rear exhaust duct, the lint build up will cause a long time drying in the dryer.

          If you need the service of a professional technician, contact a local vent cleaning company to clean the vent.

        2. Inspect for damaged exhaust.

          A crushed or damaged exhaust will also cause air blockage. If possible, check every section of your exhaust duct to ensure it is not crushed, kinked or damaged.

        3. Inspect for crushed duct.

          • Avoid long runs or runs with multiple elbows or bends.

          • Excess or crushed transition duct.

          • Too many elbows or exhaust too long can also cause long time drying.

        4. Length of the ductwork.

          When the ductwork is too long or has too many bends, blockages can occur, and it will be hard to trace. In this case, check the exterior part of the house when the machine is running to see if exhaust air is blowing outside.

          For proper inspection and repair of this situation, contact a local vent cleaning company to clean the vent.

    6. If you have tried all the recommended solutions above and the unit is not heating, the unit may require a repair service. Please visit our Request a Repair page.

Go Back

D75, D80, D90, D95 or FlowSense Indicator

The D75, D80, D90, and D95 error codes indicate that the dryer's exhaust duct is clogged 75%, 80%, 90%, or 95% respectively.

The hot, humid air from the dryer has to go somewhere, or else the moisture will stay in the drum and clothes. 2 or 4 four bars on the flowsense indicates that the exhaust system is severely restricted.

NOTE: On gas dryers, D80 may indicate the lack of gas supplied to unit.

flow sense indicator
  1. Check for lint buildup.

    Check for lint buildup at the rear exhaust duct, the lint build up will cause a long time drying in the dryer.

    If you need the service of a professional technician, contact a local vent cleaning company to clean the vent.

  2. Inspect for damaged exhaust.

    A crushed or damaged exhaust will also cause air blockage. If possible, check every section of your exhaust duct to ensure it is not crushed, kinked or damaged.

  3. Inspect for crushed duct.

    • Avoid long runs or runs with multiple elbows or bends.

    • Excess or crushed transition duct.

    • Too many elbows or exhaust too long can also cause long time drying.

  4. Length of the ductwork.

    When the ductwork is too long or has too many bends, blockages can occur, and it will be hard to trace. In this case, check the exterior part of the house when the machine is running to see if exhaust air is blowing outside.

    For proper inspection and repair of this situation, contact a local vent cleaning company to clean the vent.

Go Back

nP / nP Error Code

A nP error code on the dryer's display indicates that there is a problem with the electrical wiring in the home, and that no current is being detected at the heater.

correct installation

A PS error code on the dryer's display indicates that there is improper voltage with the power cord, which could be caused by the white and red wire connections being reversed on the dryer's terminal block.

Power Rating and Connection
  1. Check power cord connection.

    Make sure the power cord is securely plugged into a grounded outlet matching the dryer's rating plate of 240V.

    check power plug
  2. Reset the circuit breaker.

    From the home's main, turn OFF the dryer's circuit breaker for at least 10 seconds to clear the power surge inside the breaker.

  3. Inspect home outlet.

    If the nP error is displaying, the home's outlet may need to be checked by a licensed electrician in order to ensure that the correct voltage is supplied to the dryer.

  4. Request a Repair.

    If the dryer is still not heating at this stage, the unit requires a repair service. Please visit our Request a Repair page.

d80, d90, or d95 Error Code

The D75, D80, D90, and D95 error codes indicate that the dryer's exhaust duct is clogged 75%, 80%, 90%, or 95% respectively.

The hot, humid air from the dryer has to go somewhere, or else the moisture will stay in the drum and clothes. 2 or 4 four bars on the flowsense indicates that the exhaust system is severely restricted.

NOTE: On gas dryers, D80 may indicate the lack of gas supplied to unit.

flow sense indicator
  1. Check for lint buildup.

    Check for lint buildup at the rear exhaust duct, the lint build up will cause a long time drying in the dryer.

    If you need the service of a professional technician, contact a local vent cleaning company to clean the vent.

  2. Inspect for damaged exhaust.

    A crushed or damaged exhaust will also cause air blockage. If possible, check every section of your exhaust duct to ensure it is not crushed, kinked or damaged.

  3. Inspect for crushed duct.

    • Avoid long runs or runs with multiple elbows or bends.

    • Excess or crushed transition duct.

    • Too many elbows or exhaust too long can also cause long time drying.

  4. Length of the ductwork.

    When the ductwork is too long or has too many bends, blockages can occur, and it will be hard to trace. In this case, check the exterior part of the house when the machine is running to see if exhaust air is blowing outside.

    For proper inspection and repair of this situation, contact a local vent cleaning company to clean the vent.

dE (Door Error)

A DE error code means that the dryer door is not completely closed. This might be a result of:

  • Door not completely closed.

    Open the door and make sure the filter is pushed all the way in and that there are no articles of clothing stuck on the door

  • Door Misaligned.

    If the unit is brand new, is there any noticeable damage or the frame of the unit (such as the door bent)? If so, please contact the dealer.

    If the problem is not a dent or damage, please try the following:

      1. Reset the unit by unplugging it from power, or trip the circuit breaker.

      2. Wait 5 sec.

      3. Plug unit back in.

      4. Close door firmly.

      5. Select any cycle and press Start.

      6. If the unit gives the code again, the unit will need service.

E13 Error Code

An E13 error code on the dryer's display indicates that the drain hose is kinked, crushed, clogged, or that the water in the sump is frozen.

Note: The E13 error code will only display on Hybrid Condensing Dryers.

If the E13 error code is showing on the dryer's display:

  1. Check that the drain hose is not kinked, twisted, or clogged with water at the end of the hose.

  2. If the drain hose was extended, the dryer will not drain well because of the increased resistance. It is recommended to only use the standard LG drain hose.

  3. Press the START/PAUSE button to start the dryer again after checking that the drain hose is not kinked, twisted, or clogged.

If the E13 error code occurs again, the unit will require a repair service. Please visit our Request a Repair page.

FO (Filter Out) Display

An FO error or a flashing INSERT FILTER on the dryer's display indicates that the lint filter should be checked to ensure that it is inserted properly.

fo error

When the lint filter is not inserted properly, the sensor inside the dryer will display FO, and the dryer will stop working. Remove the lint filter and reinsert it into the lint filter housing.

lint filter placement

If the error continues to appear on the display screen, the unit may require a repair service. Please visit our Request a Repair page.

HS Error Code

HS error code on the dryer's display indicates that the dryer has detected an error with the HUMIDITY SENSOR.

The HS error code will cause the dryer to run for 21/2 hours, which may seem as though the dryer is not drying.

If the HS error is displayed, clean the sensors on the inside of the dryer, located below the lint filter. Allow the sensors to fully dry before attempting another cycle.

If the HS error code persists, the unit may require a repair service. Please visit our Request a Repair page.

nPError Code

A nP error code on the dryer's display indicates that there is a problem with the electrical wiring in the home, and that no current is being detected at the heater.

correct installation
  1. Check power cord connection.

    Make sure the power cord is securely plugged into a grounded outlet matching the dryer's rating plate of 240V.

    check power plug
  2. Reset the circuit breaker.

    From the home's main, turn OFF the dryer's circuit breaker for at least 10 seconds to clear the power surge inside the breaker.

  3. Inspect home outlet.

    If the nP error is displaying, the home's outlet may need to be checked by a licensed electrician in order to ensure that the correct voltage is supplied to the dryer.

  4. Request a Repair.

    If the dryer is still not heating at this stage, the unit requires a repair service. Please visit our Request a Repair page.

PF Error Code

This usually happens after a power outage. To fix it, we're going to do a factory reset.

  1. Unplug the dryer or trip the circuit breaker supplying power to the dryer off.

  2. While the dryer is without power, press and hold the Start/Pause button for 5 sec.

  3. Restore power and try to run a cycle.

If the PF error code persists, the unit may require a repair service. Please visit our Request a Repair page.

nP Error Code

A PS error code on the dryer's display indicates that there is improper voltage with the power cord, which could be caused by the white and red wire connections being reversed on the dryer's terminal block.

Power Rating and Connection
  1. Check power cord connection.

    Make sure the power cord is securely plugged into a grounded outlet matching the dryer's rating plate of 240V.

    check power plug
  2. Reset the circuit breaker.

    From the home's main, turn OFF the dryer's circuit breaker for at least 10 seconds to clear the power surge inside the breaker.

  3. Inspect home outlet.

    If the unit was just installed, you should call the installer to have them check the power cord installation and the wall outlet.

  4. Request a Repair.

    If the dryer is still not heating at this stage, the unit requires a repair service. Please visit our Request a Repair page.

Refer to the owner's manual for the model specific installation instructions for the dryer's power cord. You can get a copy from our Manuals and Documents page.

tE1 Error Code

A tE1 error code on the display of the dryer indicates a problem was detected with the dryer's thermistor. If the tE1 error code is showing on the dryer's display:

  1. Unplug the dryer, or trip the circuit breaker supplying power to the dryer.

  2. While the dryer remains without power, press and hold the START/PAUSE button for 5 seconds.

  3. Restore power to the dryer and attempt to run another cycle.

If the tE1 error code occurs again after resetting the dryer, the unit may require a repair service. Please visit our Request a Repair page.

tE2 Error Code

A tE2 error code on the display of the dryer indicates a problem was detected with the dryer's thermistor, normally during cold conditions. The extra humidity in the dryer's vent during the SteamFresh™, Steam Sanitary™, or Steam Option cycles cause the duct to cool down faster, resulting in the dryer displaying the tE2 error.

If the tE2 error code is showing on the dryer's display during the SteamFresh™, SteamSanitary™, or the Steam option:

  1. Power the dryer ON.

  2. Select the SteamFresh™ cycle.

  3. Press the MORE TIME button until big is shown in the display.

  4. Press the START button.

Cycle Selection

If the tE2 error code occurs again after resetting the dryer, the unit may require a repair service. Please visit our Request a Repair page.

tE3 Error Code

A tE3 error code on the display of the dryer indicates a problem was detected with the dryer's thermistor. If the tE3 error code is showing on the dryer's display:

  1. Unplug the dryer, or trip the circuit breaker supplying power to the dryer.

  2. While the dryer remains without power, press and hold the START/PAUSE button for 5 seconds.

  3. Restore power to the dryer and try to run another cycle.

If the tE3 error code occurs again after resetting the dryer, the unit may require a repair service. Please visit our Request a Repair page.

Add (Add Water)

An Add Water error reading on the dryer's display indicates that there is a water supply error.

Before using a steam cycle, the steam feeder must be filled with water up to the MAX indicator lines. Check the steam feeder to be sure that it is full of water and that the drawer is completely closed.

Note: Do not use distilled water in the steam feeder drawer

If the Add Water reading appears on the dryer's display after a cycle has started:

  1. Press PAUSE to temporarily stop the running cycle.

  2. Fill the steam feeder with tap water to the MAX fill line.

  3. Power the unit off and back on again, select the STEAM cycle, and press the START/PAUSE button to finish the cycle.

Check Filter

Check filter is not an error, it was designed to serve as a reminder to clean the lint filter before each use to ensure great drying every time.

The indicator turns off when you turn the cycle knob to select a drying program or when the START/PAUSE button is pressed.

CL (Child Lock)

A CL code or CHILD LOCK reading on the dryer's display is not actually an error code, but rather an indication that the Child Lock feature is active.

For most models, press and hold the key labeled CHILD LOCK for 3 seconds to disable the Child Lock feature.

Note: When the child lock feature is active, the control panel is disabled and settings cannot be adjusted.

Cooling / Drying Light

This is normal. The machine runs a dry portion and cooling portion of the cycle. The cooling portion of the cycle does not begin until the last 5 minutes of the cycle.

Wrinkle Care

This display is not an error code and does not indicate that there is a problem with the dryer. When activated, wrinkle care functions at the end of the drying cycle and will continue to tumble the dryer drum to prevent wrinkles.

The drum will rotate for 10 seconds and then off for 6 minutes. It will run for up to 3 hours. If the door is opened during this time, the Wrinkle Care option will turn off.

Reset the Control Panel

If you need to reset the Control Panel

  1. Power the dryer OFF and unplug it from the electrical outlet (You can also trip the circuit breaker if that's easier).

  2. Press and hold the START/PAUSE key for 5 seconds while the unit is without power.

  3. Turn the breaker back on, and power on the unit.

Author - Sanmi Ajanaku

Sanmi is a Home Appliance expert and author of this help library article. Please leave him feedback below about the page.

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