LG Stove smells like gas: Common Causes & How to Fix

Repair Instructions:

While all gas ranges will have a tiny gas smell when the burners first light up, a smell that doesn't go away could be because of a broken valve or gas tube. You can put a non-corrosive leak detection solution, or dish soap mixed with water, on the valve or tube connection points. The solution will bubble if there's a gas leak. If you think there's a leak, you should turn off the gas supply right away until the problem can be fixed.

How to Replace Range/Stove/Oven Valve

1. Shut off gas supply at the main shut-off valve behind or under the appliance.

2. Remove knobs from the valve stem by pulling directly away from the appliance.

3. Disconnect flexible gas connector lines from valve by loosening coupling nuts with a wrench.

4. Remove valve mounting fasteners such as screws or nuts holding it in place.

5. Gently remove old valve from orifice manifold by wiggling free.

6. Apply pipe thread sealant to the connections of the new replacement valve.

7. Position valve base into manifold cutout and start mounting fasteners by hand.

8. Reattach flexible gas lines hand tightening fittings before final wrench tightening.

9. Secure all mounting fasteners on valve base tightly.

10. Turn gas supply back on and check connections for leaks with soapy water.

Repair Instructions:

All gas ranges will have a tiny gas smell when the burners light up. This is normal and the smell should disappear quickly after the burner is lit. However, if you still smell gas after the burner is lit, or when the range isn't being used, you'll need to call a certified technician to fix the issue.

How to Replace Range/Stove/Oven Gas Valve Assembly

1. Shut off gas supply. Turn off the gas supply line valve before servicing gas components.

2. Disconnect power if electric. Turn off power at the breaker if stove is electric or has an electric igniter.

3. Detach flare fittings. Using two wrenches, detach flare nuts from valve where gas lines connect.

4. Loosen mounting bracket. The valve will be secured to the stove chassis with one or more screws.

5. Disconnect wiring (if used). Gently unplug any wires providing electric current to the valve.

6. Remove old assembly. Lift valve and bracket away from stove once lines/wiring are detached.

7. Mount new assembly bracket. Attach replacement valve to stove with mounting hardware.

8. Reconnect gas lines. Screw flare nuts onto valve inlet and outlet where lines were detached.

9. Replace wiring if removed. Plug back in leads supplying power to valve if stove uses electricity.

10. Turn on gas & check fittings. Light stove and inspect connections for leaks once supply is reopened.

Repair Instructions:

All gas ranges will have a minor gas smell when the burners light up. This is normal and the smell should disappear quickly once the burner is lit. However, if the oven burner lights within 90 seconds, but you still smell gas, it's possible that the igniter isn't working properly.

How to Replace Range/Stove/Oven Igniter

1. Shut off power. Locate the circuit breaker for the range and shut it off to cut power to the appliance.

2. Remove oven door. Most ranges have hinges that allow the door to be lifted off. Support the door and disengage it from the hinges. Set it aside.
3. Remove back panel. Look inside the oven cavity for screws or clips holding a rear access panel in place. Remove the screws or clips and take off the panel to access wiring and components.
4. Disconnect wires. The igniter will have two wires, one power supply and one ground, connected to it. Carefully disconnect the wires by twisting or squeezing release tabs to pull them free.
5. Remove old igniter. The igniter is normally held in place with one or two mounting screws. Remove the screws to take out the old igniter.
6. Install new igniter. Line up the mounting holes of the replacement igniter and secure it with the original screws. Reconnect the wires by pushing them firmly into the terminals.
7. Replace back panel and door. Reattach any panels or covers removed during disassembly and remount the oven door on its hinges.
8. Restore power. Go to the circuit breaker and restore power to the range. Test that the igniter sparks and the range functions properly.

Repair Instructions:

Every gas range will give off a small gas odor when the burners are ignited. This is expected and the smell should fade quickly once the burner is lit. However, if the gas scent lingers even after the burner is lit, or when the range is idle, there could be a problem with the safety burner valve and will need to be replaced.

How to Replace Range/Stove/Oven Surface Burner Valve

1. Shut off the gas supply at the source closest to the appliance. This helps prevent gas leaks.

2. Disconnect the flexible gas connector tube from the valve by loosening the coupling nut with a wrench.

3. Remove the surface burner head/grate to access the valve mounting screws or clips.

4. Disconnect the wire harness from the valve by depressing locking tabs on the connector.

5. Remove mounting screws/clips to release the valve from the orifice manifold.

6. Remove the old valve by gently wiggling free of manifold opening.

7. Apply thread sealant to the inlet of the new valve before installation.

8. Mount the new valve assembly using original screws or clips.

9. Reconnect the gas line and wire harness.

10. Remount burner parts and test before restoring gas supply.

Repair Instructions:

All gas ranges will have a minor gas smell when the burners light up. This is normal and the smell should vanish quickly once the burner is lit. However, if you continue to smell gas after the burner is lit, or when the range isn't being used, the safety valve could be broken. In this case, you should contact a certified technician to repair it.

How to Replace Range/Stove/Oven Safety Valve

1. Shut off gas supply at the main shut-off valve behind or under the appliance.

2. Disconnect flex gas line from safety valve by loosening coupling nut with a wrench.

3. Remove mounting screws or nuts securing safety valve to appliance structure.

4. Gently remove old valve taking care not to scratch nearby surfaces.

5. Apply pipe thread sealant to inlet port of replacement safety valve.

6. Position replacement valve at installation point and start mounting hardware.

7. Reconnect flex gas line and tighten coupling nut securely.

8. Fully tighten mounting screws/nuts with a wrench.

9. Turn on gas supply and check connections are leak-free with soapy water.

10. Reinstall any removed components and verify safe operation before use.

Repair Instructions:

All gas ranges will have a bit of a gas smell when the burners first light up, but if a stovetop or oven burner isn't lighting quickly, the smell might linger. If a stovetop burner isn't lighting within three or four seconds, the burner's spark electrode could be broken. Take a look at the electrode to see if it's visibly damaged or dirty, and replace it if needed.

How to Replace Range/Stove/Oven Spark Electrode

1. Shut off power to the appliance at the main breaker. This prevents electric shock during repair work.

2. Locate the spark electrode inside the burner box, usually above a main burner.

3. Disconnect the wire lead from the electrode terminal by squeezing the connector lock.

4. Loosen the mounting nut or screw securing the electrode to the burner box using a wrench.

5. Gently pull the electrode straight up and out of the burner well taking care not to bend components.

6. Inspect the new electrode tip for cracks or defects before installation.

7. Fit the new electrode into position in the burner box through the access hole.

8. Securely hand tighten the mounting nut while holding the electrode still.

9. Reconnect the wire lead to the electrode terminal, pushing firmly until locked.

10. Restore power and test ignition. Replacement is now complete.

Repair Instructions:

Every gas range will give off a small gas odor when the burners are ignited. This is expected and the smell should fade quickly once the burner is lit. However, if the gas scent lingers even after the burner is lit, or when the range is idle, it could mean that a gas tube or connector has a gas leak. By applying a leak detection solution, or a mix of dish soap and water, to the connection points, you can check for leaks. If bubbles form, that's a sign of a leak. You can try to tighten the connection or replace the gas tube and connector with new ones.

How to Replace Range/Stove/Oven Gas Tube or Connector

1. Shut off gas supply. Turn off the valve where gas enters the range before disconnecting any gas lines.

2. Detach flare fittings. Using two wrenches, detach the flare nuts from both ends of the tube or connector.

3. Remove worn component. Carefully pull the tube or fitting away from manifold/valve once both ends are disconnected.

4. Inspect connection points. Make sure flare surfaces are undamaged and free of dirt/debris before reconnecting.

5. Attach new component. Insert fresh tube or connector into flare openings where previous one was attached.

6. Hand-tighten nuts. Use wrenches to threadingly engage nuts but do not over-tighten at this time.

7. Turn gas back on. Open the shutoff valve and check threaded connections for leaks with soapy water.

8. Tighten as needed. If no bubbles appear, tighten connections further with wrenches and recheck.

9. Reconnect wiring if disturbed. Plug back in any wire leads that supply electrical current.

10. Ignite burners. Light stove to ensure new gas line component allows for proper operation.

Repair Instructions:

All gas ranges will have a tiny gas smell when the burners light up. This is normal and the smell should disappear quickly after the burner is lit. However, if you still smell gas after the burner is lit, or when the range isn't being used, you'll need to call a certified technician to fix the issue.