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Not Heating, Under Cooking, Over Cooking - Ranges

Troubleshooting Cooking Appliances Last Updated 10/18/2017
Not Heating, Over Cooking, Under Cooking - Ranges

Cooktop, oven and burner temperature issues may be resolved without a technician. This troubleshooting article will discuss both ELECTRIC and GAS ranges. If you see any error on the display screen, please visit our Error Codes - Cooktop and Range page to resolve the error.

Select the option that is mostly related to your range:

Cooktop - Not Heating

When one or more elements on the cooktop will not heat, it may be the result of the settings or a power supply issue.

  1. Check for power.

    Are there lights on the display, or do the indicator lights turn on when a selection is made?

    • If there is nothing on the display and the unit does not respond when a selection is made, this is a power issue; please refer to our Power Issues - Cooktops and Ranges help library article.

    • If there are lights on the display, then proceed to the next step.

  2. Is the unit a range or cooktop?

    1. Electric Range
      LRE, LDE, LSE models
      Electric Cooktop
      LCE models (except LCE30845)
      Induction Cooktop
      LCE30845
    2. Determine whether the issue affects all elements, one element, or part of a dual or triple element:

      The cooking areas on your range are identified by permanent circles on the glass cook top surface. For the most efficient cooking, fit the pan size to the element size. When a control is turned on, a glow can be seen through the glass cook top surface. The element cycles on and off to maintain the preset heat setting, even on Hi.

      element cycles

      Knob Type

      After cleaning the oven knobs, make sure to replace each knob in the correct position. Failure to do so can result in improper operation of the burners.

      Refer to the owner’s manual for the customer’s model for detailed instructions. Please visit our Manuals and Documents page to download copy.

      Knob Type

      1. Push in the appropriate knob.

      2. If the element still will not turn on, the unit will require a repair service. Please visit our Request a Repair page.

      Control Panel Type

      1. Press the ON/OFF button

      2. Use the – / + buttons to adjust the element temperature settings.

        DUAL: Press the SELECT button to select either the inner (smaller) or outer (larger) element function.

      3. To turn off the element after cooking, press the ON/OFF button once.

      4. . If the element still will not turn on, the unit will require a repair service. Please visit our Request a Repair page.

      The Warming Zone, located in the back center of glass surface, will keep hot, Cooked food at serving temperature. Use the Warming Zone to keep food warm after it has already been cooked. Attempting to cook uncooked or cold food on the Warming Zone could result in a food-borne illness. The warmer will not glow red like the other cooking elements.

    3. Determine whether the issue affects all elements, one element, or part of a dual or triple element:

      The electric cooktop requires a DUAL circuit breaker for all functions to work properly. Locate the home's circuit breaker to the unit, turn it OFF and back ON, then test the unit.

      How to test the cooktop:

      1. Press the ELEMENT POWER ON/OFF key to activate the cooktop.


      2. Press the ON key to one of the cooking zones.


      3. Select 9 on the ELEMENT POWER ON/OFF button to set the cooking zone.


      4. Follow steps 1-3 for each cooking zone.

      5. If the ALL the elements do not turn on, check if the unit is an induction cooktop and make sure that the appropriate cookware is being used. The element on an induction cooktop will not come on and turn hot unless there is a pot or pan of the right material on the element.

      6. If the elements still do not turn on, the unit will require a repair service. Please visit our Request a Repair page.

      If at least ONE of the elements is functioning and the display is responding to selections, reset the unit to clear any miscommunications that may have occurred. To reset the unit, locate the circuit breaker to the unit and turn it OFF and back ON, then test the cooktop.

      How to test the cooktop:

      1. Press the ELEMENT POWER ON/OFF key to activate the cooktop.


      2. Press the ON key to one of the cooking zones.


      3. Select 9 on the ELEMENT POWER ON/OFF key to set the cooking zone.


      4. Follow steps 1-3 for each of the cooking zones having the issue.
      5. If the elements do not turn on, check if the unit is an induction cooktop and make sure that the appropriate cookware is being used. The element on an induction cooktop will not come on and turn hot unless there is a pot or pan of the right material on the element.
      6. If the elements still do not turn on, the unit will require a repair service. Please visit our Request a Repair page.

      If all of the elements are working, but part of the dual or triple element will not activate, verify that the correct steps are being performed to activate the element.

      1. Press the ELEMENT POWER ON/OFF key to activate the cooktop.


      2. Press the ON key for one of the cooking zones. The first time will activate the single zone, the second time will activate the dual zone, and the third time will activate the triple zone, if available.


      3. Select 9 on the ELEMENT POWER ON/OFF key to set the cooking zone.


      4. If the element will still not turn on, the unit will require a repair service. Please visit our Request a Repair page.

    4. Determine whether the issue affects all elements, one element, or part of a dual or triple element:

      The induction cooktop requires a DUAL circuit breaker for all functions to work properly. Locate the home's circuit breaker, turn it OFF and back ON, then test the cooktop.

      How to test the cooktop:

      1. Press the ON/OFF key to one of the elements.

      2. Press the + key to set the highest temperature.

      3. If the element still does not turn on, the unit will require a repair service. Please visit our Request a Repair page.

      If at least one of the elements is functioning and the display is responding to selections, reset the unit to clear any miscommunications with the control board. To reset the unit, locate the home's circuit breaker to the unit, turn it OFF and back ON, then test the cooktop.

      How to test the cooktop:

      1. Press the ON/OFF button to one of the elements.

      2. Press the + key to set the highest temperature.

      3. If the element still does not turn on, the unit will require a repair service. Please visit our Request a Repair page.

      If all of the elements are working, but the bridge element will not activate, verify that the correct steps are being performed to activate the element.

      1. Press the ON/OFF key to the element.

      2. Press the BRIDGE key. The bridge element indicator will light.

        Bridge Element
      3. Press the + key to set the highest temperature.

      4. If the element still will not turn on, the unit will require a repair service. Please visit our Request a Repair page.

Cooktop - Heating Too Much/Not Heating Enough

Request for repair IMMEDIATELY IF

  • One or more of the burners on an ELECTRIC RANGE fails to turn OFF after being switched OFF, or

  • Temperature setting increase unexpectedly during use.

GLASS cooktops do not lose as much heat to the surrounding area, compared to a coil or gas cooktop. Glass cooktops can often be set to lower temperature compared to a coil or gas cooktop. For more detailed information about the recommended settings for your specific model, refer to your owner's manual.

When the cooktop is heating too much, check the following sections to ensure that optimum cooking performance.

The cooking areas on your range are identified by permanent circles on the glass cook top surface. For the most efficient cooking, fit the pan size to the element size. When a control is turned on, a glow can be seen through the glass cook top surface. The element cycles on and off to maintain the preset heat setting, even on Hi.

element cycles

Knob Type

After cleaning the oven knobs, make sure to replace each knob in the correct position. Failure to do so can result in improper operation of the burners.

Refer to the owner’s manual for the customer’s model for detailed instructions. Please visit our Manuals and Documents page to download copy.

  1. Push in the appropriate knob.

  2. If the element still will not turn on, the unit will require a repair service. Please visit our Request a Repair page.

Control Panel Type

  1. Press the ON/OFF button

  2. Use the – / + buttons to adjust the element temperature settings.

    DUAL: Press the SELECT button to select either the inner (smaller) or outer (larger) element function.

  3. To turn off the element after cooking, press the ON/OFF button once.

  4. . If the element still will not turn on, the unit will require a repair service. Please visit our Request a Repair page.

The Warming Zone, located in the back center of glass surface, will keep hot, Cooked food at serving temperature. Use the Warming Zone to keep food warm after it has already been cooked. Attempting to cook uncooked or cold food on the Warming Zone could result in a food-borne illness. The warmer will not glow red like the other cooking elements.

Flat bottomed cookware is always highly recommended for use with the radiant cooktop.

Using cookware with rounded (convex or concave) bottoms can cause the heating efficiency of the cooktop to be lower or higher than normal.

Be sure that the cooking zones match the size of the cookware intended for use.

NOTE: Induction cooktop cookware requirements can be found in the model specific owner's manual. Please visit our Manuals and Documents page to download a copy of your owner's manual.

Elements Cycles ON and OFF

  1. Stops glowing at various times.

    If the element stops glowing at various times depending on the setting, this is a normal operation. Each power level setting has a different heating time.

    • The power level setting of the cooktop element consists of 25 various selections.

    • Each power level setting has a different heating time. If the display shows LO, the element will heat less.

    • Double check the setting to be sure that it is set appropriately for the type of cooking intended to be done.


  2. Hot surface indicator.

    • If the HS(Hot Surface) indicator is lit after the cook top has been turned OFF, this is normal.

    • The HS indicates the surface of the cook top is hot, serving as a reminder not to touch the cook top surface.

    • The HS indicator should remain ON until the surface has cooled down to approximately 150℉.

    • It is normal for the surface elements to cycle on and off during cooking, even on higher settings.

    • This will happen more frequently if cooking on a lower temperature setting.

Burner Flames Uneven, Large, Small

NOTE: This article should only be used for troubleshooting GAS ranges. Especially LRG, LDG, LCG, and LSCG Models.

  1. Liquid Propane(LP) gas connection.

    • The unit must be converted for LP gas before use.

    • All LG gas units comes ready for natural gas.

    • If the unit is connected to LP but is not converted for LP, the unit will have abnormal combustion.

    • The unit must be converted to accept LP gas. The unit should be checked by the installer who performed the LP conversion.

    • If the conversion is correct, a technician should check the unit.

  2. Burner caps and heads sitting flat.

    If burner cap is mis-assemble with burner head, gas difference will came out between burner cap and burner head. This problem could be extraordinary combustion. Therefore burner cap must be re-assembled with burner head correctly.

    • Reassemble the burner heads and caps, so they are flat and flush with the cooktop surface.

  3. Correct burner position.

    Your gas range cooktop has four or five sealed gas burners, depending on the model.

    • These can be assembled and separated.

    • There is one small, one medium, one large, and one extra large burner head and cap.

    • Make sure that the caps and heads are placed in the correct locations.

    • The burner cap may be in the wrong position.

  4. Is the flame hole clogged?

    If the flame hole is clogged, disassemble and clean the burner head on the unit.

    • If you want to remove burned-on food, soak the burner heads in a solution of mild liquid detergent and hot water for 20–30 minutes.

    • After drying it out. For more stubborn stains, use a toothbrush.

    • Any food or debris on the burner head will cause yellow flames.

    For Oval (Center) Burners:

    • Release 6 nuts(4nuts : On some models) on the reverse side of burner.

    • Remove foreign substance in the flame holes with soft brush like toothbrush.

    • After removing foreign substance, rinse it with only water.

    • After drying it out, assembly nuts.

  5. Check ignitor for debris.

    Remove the burner cap, check the ignitor and any of the port for debris and blockage.

    • If soil is seen on the ignitor, remove soil with a soft bristled brush (such as a toothbrush) and/or a soft cloth.

  6. Orifice is clogged.

    With the burner cap and head removed, check the orifice spud found in the center opening of the burner zone for any debris or soils clogging it.

    • If soil is seen on the orifice, remove soil with a soft bristled brush (such as a toothbrush).

    • If orifice is clogged with dust, insect, dregs. Obstacles Must be removed by using tweezers.

  7. Is the Low Flame (Simmer) function used?

    YES, follow the steps below on how to adjust the Surface Burner to the Low Flame (Simmer) Setting.

    NOTE: If the flames are too high or low and you must adjust them, you may do so manually.

    1. Light all surface burners.

    2. Turn the knob on the burner being adjusted to Lo.

    3. Remove the knob.

    4. Insert a small, flat-blade screwdriver into the valve shaft.

    5. Replace the knob.

    6. Test the flame stability.

      • Test 1: Turn the knob from Hi to Lo quickly. If the flame goes out, increase the flame size and test again.

      • Test 2: With the burner on a Lo setting, open and close the oven door quickly. If the flame is extinguished by the air currents created by the door movement, increase the flame height and test again.

    7. Repeat steps 1-6 for each surface burner.

  8. Oval burner seem too weak.

    Does the oval burner seem too weak or do the flames seem too low?

    The oval burner is designed for 8,000 or 10,000 BTUs, depending on the model. The oval burner disperses the flames over a larger surface area, which results in the flames being lower than round burners of the same BTU rating. This is normal.

    1. Select from the models below for more detail:

      LRG309*, LDG301*, LDG303* LRG41*, LDG43*
    2. LRG3093, LRG3095, LRG3097
      LDG3011, LDG3015, LDG3016, LDG3017
      LDG3031, LDG3035, LDG3036, LDG3037

      The oval burner on these models is 8,000 BTUs. Preheating is necessary, as is using the proper cookware.

      On these models, if the preheated griddle plate is still unsatisfactory, place the griddle on the left side of the cooktop and turn ON the two left burners (left front and left back). The left front should be set to "4", while the left back burner should be set to "5".

    3. LRG4113, LRG4115
      LDG4313, LDG4315

      The oval burner on these models is 10,000 BTUs. Preheating is necessary, as is using the proper cookware.

  9. Flames lower than other flames.

    If the flames that are located just beneath the grate legs are lower than the other flames, this is normal. The flames should not come in direct contact with the grates.

    • If the flames come in direct contact with the grates, the parts of the grates that are in contact with the flames will be hotter and the result is uneven cooking.

    • In the example below, the left image shows a 12K BTU burner and the right image shows a 17K BTU burner.

Burner Flames Yellow/Red

  1. Liquid Propane(LP) gas connection.

    • The unit must be converted for LP gas before use.

    • All LG gas units comes ready for natural gas.

    • If the unit is connected to LP but is not converted for LP, the unit will have abnormal combustion.

    • The unit must be converted to accept LP gas. The unit should be checked by the installer who performed the LP conversion.

    • If the conversion is correct, a technician should check the unit.

  2. Burner caps and heads sitting flat.

    If burner cap is mis-assemble with burner head, gas difference will came out between burner cap and burner head. This problem could be extraordinary combustion. Therefore burner cap must be re-assembled with burner head correctly.

    • Reassemble the burner heads and caps, so they are flat and flush with the cooktop surface.

  3. Correct burner position.

    Your gas range cooktop has four or five sealed gas burners, depending on the model.

    • These can be assembled and separated.

    • There is one small, one medium, one large, and one extra large burner head and cap.

    • Make sure that the caps and heads are placed in the correct locations.

    • The burner cap may be in the wrong position.

  4. Is the flame hole clogged?

    If the flame hole is clogged, disassemble and clean the burner head on the unit.

    • If you want to remove burned-on food, soak the burner heads in a solution of mild liquid detergent and hot water for 20–30 minutes.

    • After drying it out. For more stubborn stains, use a toothbrush.

    • Any food or debris on the burner head will cause yellow flames.

    For Oval (Center) Burners:

    • Release 6 nuts(4nuts : On some models) on the reverse side of burner.

    • Remove foreign substance in the flame holes with soft brush like toothbrush.

    • After removing foreign substance, rinse it with only water.

    • After drying it out, assembly nuts.

  5. Check ignitor for debris.

    Remove the burner cap, check the ignitor and any of the port for debris and blockage.

    • If soil is seen on the ignitor, remove soil with a soft bristled brush (such as a toothbrush) and/or a soft cloth.

  6. Orifice is clogged.

    With the burner cap and head removed, check the orifice spud found in the center opening of the burner zone for any debris or soils clogging it.

    • If soil is seen on the orifice, remove soil with a soft bristled brush (such as a toothbrush).

    • If orifice is clogged with dust, insect, dregs. Obstacles Must be removed by using tweezers.

  7. Is the Low Flame (Simmer) function used?

    YES, follow the steps below on how to adjust the Surface Burner to the Low Flame (Simmer) Setting.

    NOTE: If the flames are too high or low and you must adjust them, you may do so manually.

    1. Light all surface burners.

    2. Turn the knob on the burner being adjusted to Lo.

    3. Remove the knob.

    4. Insert a small, flat-blade screwdriver into the valve shaft.

    5. Replace the knob.

    6. Test the flame stability.

      • Test 1: Turn the knob from Hi to Lo quickly. If the flame goes out, increase the flame size and test again.

      • Test 2: With the burner on a Lo setting, open and close the oven door quickly. If the flame is extinguished by the air currents created by the door movement, increase the flame height and test again.

    7. Repeat steps 1-6 for each surface burner.

  8. Oval burner seem too weak.

    Does the oval burner seem too weak or do the flames seem too low?

    The oval burner is designed for 8,000 or 10,000 BTUs, depending on the model. The oval burner disperses the flames over a larger surface area, which results in the flames being lower than round burners of the same BTU rating. This is normal.

    1. Select from the models below for more detail:

      LRG309*, LDG301*, LDG303* LRG41*, LDG43*
    2. LRG3093, LRG3095, LRG3097
      LDG3011, LDG3015, LDG3016, LDG3017
      LDG3031, LDG3035, LDG3036, LDG3037

      The oval burner on these models is 8,000 BTUs. Preheating is necessary, as is using the proper cookware.

      On these models, if the preheated griddle plate is still unsatisfactory, place the griddle on the left side of the cooktop and turn ON the two left burners (left front and left back). The left front should be set to "4", while the left back burner should be set to "5".

    3. LRG4113, LRG4115
      LDG4313, LDG4315

      The oval burner on these models is 10,000 BTUs. Preheating is necessary, as is using the proper cookware.

  9. Flames lower than other flames.

    If the flames that are located just beneath the grate legs are lower than the other flames, this is normal. The flames should not come in direct contact with the grates.

    • If the flames come in direct contact with the grates, the parts of the grates that are in contact with the flames will be hotter and the result is uneven cooking.

    • In the example below, the left image shows a 12K BTU burner and the right image shows a 17K BTU burner.

Burners Do Not Light

NOTE: This article should only be used for troubleshooting Gas Cooking Products - LCG OR LSCG Models. For electric models, refer to Electric Cooktop Issues: Not Heating.

  1. Clicking sound.

    The surface burner should spark or make a clicking sound when the knob is in the LITE position. It makes the spark and noise like “Tak-Tak” All the spark igniters on the cook top will activate when igniting one burner.

    If not, the unit will require a repair service. Please visit our Request a Repair page.

  2. Check the cap location is correct.

    Make sure that the caps and heads are placed in the correct locations.

    When the knob is turned to LITE, voltage is discharged from electrode(spark plug) to burner cap.

  3. Check ignitor for blockage.

    Remove the burner cap and check the ignitor and any of the port for debris and blockage. If soil is seen on the ignitor, clean the ignitors with a soft bristled brush (such as a toothbrush) and/or a soft cloth.

  4. Orifice is clogged.

    With the burner cap and head removed, check the orifice spud found in the center opening of the burner zone for any debris or soils clogging it.

    • If soil is seen on the orifice, remove soil with a soft bristled brush (such as a toothbrush).

    • If orifice is clogged with dust, insect, dregs. Obstacles Must be removed by using tweezers.

  5. Check gas supply.

    Check the gas supply coming in to the home. Is the gas supply in the OPEN position? If its closed, turn the gas valve to the OPEN position, and try turning the burner on again.

    If you have tried all the above steps and the problem persist, the unit will require a repair service. Please visit our Request a Repair page.

Electric Ranges - Oven Not Heating

Electric Models - LRE, LDE, LWS, LWD, & LCE Models

  1. Check for error codes.

    Do you see any error code on the display screen? (Usually "F" followed by a number.)

    Error codes are signs that the unit needs your attention, each error code has specific troubleshooting instructions. Please visit our Error Codes - Cooktop and Range page to resolve the error.

  2. Use correct settings for the intended cycle?

    Check the oven temperature settings and adjust it if necessary.

    • Oven control settings must be confirmed by pressing the START button after the temperature is changed.

    • Any temperature change made will be canceled if it is not confirmed by pressing the START button within 25 seconds.

  3. Dedicated circuit breaker

    The unit must be on a dedicated circuit, and also switched ON.

    • The ELECTRIC unit requires a 240V (AC), 40~50 amp dedicated circuit.

    • If the unit is not on a dedicated circuit, an electrician will need to be contacted to rewire the outlet.

    • Check the circuit breaker to be sure that it has not tripped OFF. If so, flip the breaker back to the ON position.

  4. Do not use an extension cord.

    • The unit must be connected to the power outlet directly WITHOUT an extension cord.

    • ELECTRIC units require a 240V (AC), 40~50 amp dedicated circuit.

    • Connect the unit without an extension cord and try the power button again.

  5. Is the oven door open?

Electric Ranges - Oven Under Cooking

Poor cooking performance may be the result of the settings, rack position, amount, position of food, or even the thermostat setting.

  1. Use the correct settings.

    • Ensure that the unit is set for the correct temperature scale: °F instead of °C (Fahrenheit instead of Celsius).

    • Confirm the temperature was set within the unit's temperature range:

      NOTE: This temperature range below may vary by model, please refer to the owner's manual of your specific model for accurate temperature range. Download a copy from our Manuals and Documents page.

      FEATURE MINIMUM TEMP./TIME MAXIMUM TEMP./TIME DEFAULT
      Convection Bake

      300°F / 150°C

      550°F / 285°C

      12 Hr.

      Convection Roast

      300°F / 150°C

      550°F / 285°C

      12 Hr.

      Broil Temp

      Lo - 400°F / 204°C

      Hi - 550°F / 288°C

      3 Hr.

      Bake Temp.

      170°F / 77°C

      550°F / 288°C

      12 Hr.

      Warm

      170°F / 75°C

      170°F / 75°C

      3 Hr.

      If set to 600°F, temp will default to maximum temp of 550°F

      If set to 100°F, temp will default to minimum temp of 150°F

    • Verify START was pressed within 25 seconds, otherwise the display will clear and the oven will not start heating.

  2. Preheated oven before cooking.

    Preheat the oven if the recipe calls for it.

    • To preheat the oven, set the oven at the correct temperature.

    • Preheating is necessary when using convection bake and for good results when baking cakes, cookies, pastry and breads.

  3. Amount of food being cooked.

    When cooking too much food at once, overall cook time is longer.

    • Follow packaging directions and recipes as instructed for best results.

  4. Oven rack position.

    Cooking results can be affected if the rack is in the wrong position.

    • The heat distribution at each rack position is different.

    • It is NOT recommended to cover the racks with any materials such as aluminum foils. This will hinder even heat distribution.

    • The owner's manual for each model identifies the different rack positions. Please visit our Manuals and Documents page to download a copy.

    • Center pans on racks for best baking results. If baking with more than one pan, place the pans so that each one has at least 1" to 11/2" of air space around it. Do not allow pans to touch the walls of the oven.

  5. Using aluminum foil.

    It is NOT recommended to cover the racks with any materials.

    • Heat distribution can be disrupted and make foods unable to cook.

    • DO NOT cover a rack with aluminum foil or the cover the bottom of the oven with aluminum foil.

    • DO NOT line the oven walls, racks, bottom, or any other part of the range with aluminum foil or any other material.

  6. Cooler or takes longer than prior unit.

    When the unit is cooler or takes longer cooking time than your previous unit, this can be the result of the oven's thermostat settings.

    The oven's thermostat setting comes preset from the factory. However, this setting can be adjusted. Refer to the owner's manual for the customer's model for detailed instructions. Please visit our Manuals and Documents page to download a copy.

Electric Ranges - Oven Over Cooking

LRE, LDE, LWS, LWD, & LCE Models

  1. Use correct settings.

    Check the oven temperature settings.

    • Oven control settings must be confirmed by pressing the START button after the temperature is changed.

    • Any temperature change made will be canceled if it is not confirmed by pressing the START button within 25 seconds.

  2. Convection fan running.

    If you can hear the convention fan running, even on normal bake, this is normal. The oven is designed to operate this way for increased cooking performance.

  3. Rack position.

    Cooking results can be affected if the rack is in the wrong position.

    The heat distribution at each rack position is different and varies by model. We recommend you check your owner's manual for accurate guidelines on rack placement. Please visit our Manuals and Documents page to download a copy.

  4. Hotter or burn faster than your prior unit.

    This can be the result of the oven's thermostat setting.

    The oven's thermostat setting comes preset from the factory. However, this setting can be adjusted.

    To adjust the oven's thermostat, please refer to your owner's manual. Visit our Manuals and Documents page to download a copy.

Gas Ranges - Oven Not Heating

Gas Models - LRG or LDG Models

Before we proceed, watch this video about LG Range - Heating Issues

  1. Check for error codes.

    Do you see any error code on the display screen? (Usually "F" followed by a number.)

    Error codes are signs that the unit needs your attention, each error code has specific troubleshooting instructions. Please visit our Error Codes - Cooktop and Range page to resolve the error.

  2. Use correct settings for the intended cycle?

    Check the oven temperature settings and adjust it if necessary.

    • Oven control settings must be confirmed by pressing the START button after the temperature is changed.

    • Any temperature change made will be canceled if it is not confirmed by pressing the START button within 25 seconds.

  3. Dedicated circuit breaker

    The unit must be on a dedicated circuit, and also switched ON.

    • GAS RANGES requires a single-phase, 3 wire, A.C. 120V 60Hz electrical system on a 15-20 amp dedicated circuit

    • If the unit is not on a dedicated circuit, an electrician will need to be contacted to rewire the outlet.

    • Check the circuit breaker to be sure that it has not tripped OFF. If so, flip the breaker back to the ON position.

  4. Do not use an extension cord.

    • The unit must be connected to the power outlet directly WITHOUT an extension cord.

    • GAS units require UL listed 15-20 Amp power supply cord.

    • Connect the unit without an extension cord and try the power button again.

  5. Is the oven door open?

  6. Is the gas valve open?

    The gas valve must be open for the oven to heat.

    • If the unit was recently pulled out or moved for cleaning, it is possible that the gas to the unit was shut off.

    • The gas may be shut off by the technician at the actual gas shut-off valve or on the pressure regulator.

    • The gas shut off valve is the connection on the home side, whereas the pressure regulator is the connection on the unit side.

    • If the home's gas valve is ON, then check the pressure regulator on the unit. The location depends on the model. Please refer to your owner's manual for more information.

      shut off valve

    NOTE: Please refer to your owner's manual for the correct position of your gas shut-off valve. Visit our Manuals and Documents page to download a copy of your owner's manual.

  7. Is the ignitor working properly?

    If the ignitor is not working, the oven will not heat.

    • The gas range is designed for using the hot surface ignitor to ignite the bake burner.

    • The ignitor gets red and lights for about 30 to 60 seconds. The light of the hot surface ignitor is reflected in the oven cavity.

    • If the igniter doesn't work, an error code will display. This error code varies by model, if you see an error code please refer to our Error Codes - Cooktops & Ranges page to resolve the error code

      igniter On or OFF

Gas Ranges - Oven Under Cooking

Poor cooking performance may be the result of the settings, rack position, amount, position of food, or even the thermostat setting.

Before we proceed, watch this video about LG Range - Heating Issues

  1. Use the correct settings.

    • Ensure that the unit is set for the correct temperature scale: °F instead of °C (Fahrenheit instead of Celsius).

    • Confirm the temperature was set within the unit's temperature range:

      NOTE: This temperature range below may vary by model, please refer to the owner's manual of your specific model for accurate temperature range. Download a copy from our Manuals and Documents page.

      FEATURE MINIMUM TEMP./TIME MAXIMUM TEMP./TIME DEFAULT
      Convection Bake

      300°F / 150°C

      550°F / 285°C

      12 Hr.

      Convection Roast

      300°F / 150°C

      550°F / 285°C

      12 Hr.

      Broil Temp

      Lo - 400°F / 204°C

      Hi - 550°F / 288°C

      3 Hr.

      Bake Temp.

      170°F / 77°C

      550°F / 288°C

      12 Hr.

      Warm

      170°F / 75°C

      170°F / 75°C

      3 Hr.

      If set to 600°F, temp will default to maximum temp of 550°F

      If set to 100°F, temp will default to minimum temp of 150°F

    • Verify START was pressed within 25 seconds, otherwise the display will clear and the oven will not start heating.

  2. Preheated oven before cooking.

    Preheat the oven if the recipe calls for it.

    • To preheat the oven, set the oven at the correct temperature.

    • Preheating is necessary when using convection bake and for good results when baking cakes, cookies, pastry and breads.

  3. Amount of food being cooked.

    When cooking too much food at once, overall cook time is longer.

    • Follow packaging directions and recipes as instructed for best results.

  4. Oven rack position.

    Cooking results can be affected if the rack is in the wrong position.

    • The heat distribution at each rack position is different.

    • It is NOT recommended to cover the racks with any materials such as aluminum foils. This will hinder even heat distribution.

    • The owner's manual for each model identifies the different rack positions. Please visit our Manuals and Documents page to download a copy.

    • Center pans on racks for best baking results. If baking with more than one pan, place the pans so that each one has at least 1" to 11/2" of air space around it. Do not allow pans to touch the walls of the oven.

  5. Using aluminum foil.

    NEVER cover the bottom of the oven with aluminum foil.

    • DO NOT use foil to line the warming drawer.

    • Do not block any slots, holes, or passages in the bottom of the oven or cover an entire rack with materials such as aluminum foil.

      NOTE: GAS UNITS ONLY: Aluminum foil may be used to catch a spillover. To do so, place a small sheet of foil on a lower rack several inches below the food. NEVER entirely cover a rack with foil. This will disturb the heat circulation and result in poor baking.

  6. Cooler or takes longer than prior unit.

    When the unit is cooler or takes longer cooking time than your previous unit, this can be the result of the oven's thermostat settings.

    The oven's thermostat setting comes preset from the factory. However, this setting can be adjusted. Refer to the owner's manual for the customer's model for detailed instructions. Please visit our Manuals and Documents page to download a copy.

Gas Ranges - Oven Over Cooking

LRG or LDG Models

Before we proceed, watch this video about LG Range - Heating Issues

  1. Use correct settings.

    Check the oven temperature settings.

    • Oven control settings must be confirmed by pressing the START button after the temperature is changed.

    • Any temperature change made will be canceled if it is not confirmed by pressing the START button within 25 seconds.

  2. Convection fan running.

    If you can hear the convention fan running, even on normal bake, this is normal. The oven is designed to operate this way for increased cooking performance.

  3. Rack position.

    Cooking results can be affected if the rack is in the wrong position.

    The heat distribution at each rack position is different and varies by model. We recommend you check your owner's manual for accurate guidelines on rack placement. Please visit our Manuals and Documents page to download a copy.

  4. Hotter or burn faster than your prior unit.

    This can be the result of the oven's thermostat setting.

    The oven's thermostat setting comes preset from the factory. However, this setting can be adjusted.

    To adjust the oven's thermostat, please refer to your owner's manual. Visit our Manuals and Documents page to download a copy.

  5. Heating too much during the pre-heating cycle

    During the pre-heating cycle, it is normal for the gas oven to have a higher temperature than what is set during the pre-heating cycle.

    • LG gas ranges have a built in function that increases the temperature during the pre-heating cycle to improve baking performance.

    • This is the only cycle that this will occur in. The oven will cook at the set temperature during the baking cycle.

    • Gas range models LRG3091**, LRG3093**, LRG3095** and LRG3097** will pre-heat to 100 degrees higher than the set temperature.

    • Gas range double oven models LDG3031**, LDG3035**, LDG3036**, and LDG3037** will pre-heat to 75 degrees higher than the set temperature.

    • NOTE: Once the increased pre-set temperature is met, the oven will only heat to maintain the set temperature.

  6. Connect to LP gas (Liquid Propane)?

    The unit must be converted for LP gas before use.

    • All LG gas unit comes ready for natural gas.

    • If the unit is connected to LP but is not converted for LP, the unit will have abnormal combustion.

    • If the unit is operated by using LP without converting it first, the Bake flames will be larger than normal and will have yellow tipping. You MUST properly covert using the installation kit provided with your 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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