How to Replace LG Dryer Gas Valve Solenoid Coils

These electromagnetic coils open the gas valve to feed the burner. LG gas dryers use a dual-coil valve — one coil opens the main valve and a second holds it open — and as coils weaken with age they can no longer generate enough magnetic force to hold the valve open reliably. The classic symptom is intermittent heat: the igniter glows normally (so the ignition circuit is fine), but gas does not flow because the coils cannot hold the valve.

Tools, Parts, and Safety First#

• Tools needed: Phillips #2 screwdriver, 5/16-inch nut driver, needle-nose pliers
• Parts needed: Gas valve solenoid coil kit (varies — always replace both coils as a set)
• Time required: 25-35 minutes
• Difficulty: Intermediate
• Safety warning: Close the gas supply valve before any work. Unplug the dryer. After repair, check all gas connections with soap bubble test before restoring power. If you smell gas at any point, close the valve immediately and ventilate the area.

Step-by-Step Instructions#

Step 1 — Close the gas supply and reach the burner#

Close the gas supply valve (the quarter-turn valve on the gas line behind or beside the dryer) and unplug the dryer. Open the lower front access panel or remove the lower kick panel to expose the gas burner assembly.

Step 2 — Locate the gas valve and coils#

The gas valve is the central part of the burner assembly — a metal block with the gas-line input and the burner output. The solenoid coils are the cylindrical electromagnetic components on the valve body (usually 2, stacked or side by side), each with a 2-wire connector.

Step 3 — Remove the old coils#

Disconnect the wire connectors from both coils. The coils are held to the valve body by a retaining bracket or the valve stem itself, so remove the retaining hardware and slide the coils off the stems. Note the order and orientation, since there may be a specific sequence for which coil goes first on the stem.

Step 4 — Install the new coils#

Slide the new coils onto the valve stems in the correct order, replace the retaining hardware, and connect the wire harnesses. The coils are typically interchangeable by wire color, but verify against your model's wiring diagram.

Step 5 — Test for gas leaks#

Before plugging in, open the gas supply valve and check every connection with a soapy-water solution — apply it to each threaded gas connection and the valve body and watch for bubbles. Any bubble formation is a gas leak that must be resolved before operation, so tighten fittings as needed.

Step 6 — Test dryer operation#

Plug in and start a timed heat cycle. The igniter should glow orange-hot within 30 seconds, and once it reaches temperature the coils should energize (a faint click) and gas should flow — visible as a blue flame through the inspection window — igniting within 3-5 seconds. Repeat the test 3-4 times (stop and restart) to confirm the coils open reliably every time, since the original symptom was intermittent failure and the new coils should work on every attempt.

Troubleshooting Common Issues#

• Gas still does not ignite: if the igniter glows but no gas flows even with new coils, the mechanical portion of the gas valve may be stuck — replace the entire gas valve assembly (more expensive).
• Igniter does not glow: that is a separate issue from the coils — the igniter, flame sensor, or control-board ignition circuit has failed.
• Flame ignites then goes out: the flame sensor is not detecting the flame — clean it with fine sandpaper or replace it.

When Should You Call a Professional?#

EasyBear technicians serving Sacramento and the Bay Area carry LG-specific diagnostic tools and replacement parts on every service call. Call one if you smell gas after the repair (an immediate professional response), if the gas valve body is damaged or leaking, or if you are not comfortable working with gas connections.

Need Professional Help?#

• dryer repair service
• lg appliance repair
• dryer repair cost guide

Need help with this repair? Schedule a free diagnostic — same-day LG dryer service across the Bay Area.